AREAS OF EXPERTISE

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Colorectal Polyps

Colonic polyps, also known as colorectal polyps, are growths that appear on the surface of the colon. The colon, or large intestine, is a long hollow tube at the bottom of the digestive tract. It’s where the body makes and stores stool.

Polyps in the colon can vary in size and number. There are three types of colon polyps:

Hyperplastic polyps are harmless and do not develop into cancer.

Adenomatous polyps are the most common. Although most will never develop into cancer, they do have the potential to develop into colon cancer.

Malignant polyps are polyps that are noted under microscopic examination to have cancer cells in them.

In most cases, polyps do not cause symptoms and are usually found on routine colon cancer screening exams. However, if you do experience symptoms, they may include:

blood in the stool or rectal bleeding

pain, diarrhea, or constipation that lasts longer than one week

nausea or vomiting if you have a large polyp

Blood on your toilet tissue or blood streaked stools may be an indication of rectal bleeding and should be evaluated by a doctor.

Causes of Anal Abscess and Treatment

Symptoms of colonic polyps

It's important to have regular screening tests to detect any existing polyps. When colonic polyps are found in the early stages, they can often be removed safely and completely during a colonoscopy. Removing polyps may reduce your risk of developing colon cancer.

Doctors don’t know the exact cause of colonic polyps, but polyps result from abnormal tissue growth. The body periodically develops new healthy cells to replace old cells that are damaged or no longer needed. The growth and division of new cells is usually regulated. In some cases, however, new cells grow and divide before they’re needed. This excess growth causes polyps to form. The polyps can develop in any area of the colon.

Diagnostics for Polyps

Colonoscopy: During this procedure, a camera attached to a thin, flexible tube is threaded through the anus. This allows your doctor to view the rectum and colon. If a polyp is found, your doctor can remove it immediately or take tissue samples for analysis.

Sigmoidoscopy: This screening method is similar to a colonoscopy, but it can only be used to see the rectum and lower colon. It can’t be used to take a biopsy, or a sample of tissue. If your doctor detects a polyp, you'll need to schedule a colonoscopy to have it removed.

Barium enema: For this test, your doctor injects liquid barium into your rectum and then uses a special X-ray to take images of your colon. Barium makes your colon appear white in the pictures. Since polyps are dark, they’re easy to identify against the white color.

CT colonography: This procedure uses a CT scan to construct images of the colon and rectum. After the scan, a computer combines the images of the colon and rectum to produce both 2- and 3-D views of the area. A CT colonography is sometimes called a virtual colonoscopy. It can show swollen tissues, masses, ulcers, and polyps.

Stool test: Your doctor will give you a test kit and instructions for providing a stool sample. You’ll return the sample to your doctor’s office for analysis, especially to test for microscopic bleeding. This test will show if you have blood in your stool, which can be a sign of a polyp.

Treatment

The best way to treat colonic polyps is to remove them. Your doctor will likely remove your polyps during a colonoscopy. The polyps are then examined under the microscope to see what type of polyp it is and if there are any cancer cells present. Doctors can usually get rid of polyps without performing surgery.

However, you may need surgery to remove the polyps if they’re large and can’t be removed during a colonoscopy. In most cases, this can be done by laparoscopic surgery. This type of surgery is minimally invasive and uses an instrument called a laparoscope. A laparoscope is a long, thin tube with a high-intensity light and a high-resolution camera at the front. The instrument is inserted through an incision in the abdomen. Once your surgeon has a visual of your colon, they’ll remove the polyps using a special tool.

A pathologist, or someone who specializes in tissue analysis, will check the polyps for cancerous cells.

Adenoma

Adenoma is a type of non-cancerous tumor or benign that may affect various organs. It is derived from the word “adeno” meaning 'pertaining to a gland'.

Every cell in the body has a tightly regulated system that dictates when it needs to grow, mature and eventually die off. Tumors and cancers occur when cells lose this control and divide and proliferate indiscriminately.

The basic difference between a benign tumor and a cancer is its slower growth and lower capacity to spread. In other words adenomas are much less aggressive in terms of growth than adenocarcinomas.

Adenomas may affect various organs including Colon, Pituitary gland, Thyroid gland, Breasts, Adrenal gland and Kidneys.

Colons are the most common organs that are affected by adenomas. There may be detected on colonoscopy. A regular surveillance of colonic adenomas and preferable removal of these tumors is advised as they have a very high potential to become colon cancers.

Neuroendocrine tumours

Neuroendocrine tumours (NETs) are rare tumours that can occur in the cells of the neuroendocrine system.

The neuroendocrine system consists of nerve and gland cells. It produces hormones and releases them into the bloodstream.

NETs are tumours (abnormal growths) that develop in the cells of the neuroendocrine system.

NETs can be malignant (cancerous) or benign (non-cancerous) and often – but not always – grow slowly. There are a number of different types of NET, depending on the specific cells affected.

Types of neuroendocrine tumours

Gastroenteropancreatic neuroendocrine tumours (GEP NETs) are tumours that develop in the gut or pancreas.

Gastrointestinal neuroendocrine tumours (GI NETs) develop in the digestive system, which includes the bowel, stomach or oesophagus. Pancreatic neuroendocrine tumours (pNETs) develop in the pancreas.

Pulmonary neuroendocrine tumours develop in the lungs. Rarely, NETs can also develop in other parts of the body, including in the liver, gallbladder, bile ducts, kidneys, ovaries, or testicles.

Some NETs, known as functioning tumours, produce hormones that cause specific symptoms. Tumours that don't cause symptoms are known as non-functioning tumours.

Symptoms of neuroendocrine tumours

The symptoms of a neuroendocrine tumour can vary depending on where it is and what hormones it produces.

For example, a tumour in the digestive system may cause diarrhoea, constipation or tummy pains. A tumour in the lung may cause wheezing or a persistent cough.

Some tumours (functioning tumours) may cause abnormally large amounts of hormones to be released into the bloodstream.

This can cause symptoms such as diarrhoea, flushing, cramps, wheezing, low blood sugar (hypoglycaemia), changes in blood pressure and heart problems.

What causes neuroendocrine tumours?

What causes neuroendocrine tumours isn't fully understood. However, your chance of developing an NET is increased if you have one of the following rare conditions or syndromes:

multiple endocrine neoplasia type 1 (MEN 1) – a rare inherited condition where tumours in the endocrine system develop, most commonly in the parathyroid glands, pituitary gland and the pancreas

neurofibrmatosis type 1 – a group of genetic conditions that cause tumours to grow along your nerves

Von Hippel-Lindau syndrome (VHL) – an inherited condition that causes blood vessels to grow abnormally

Research has also shown that your risk of developing an NET is slightly increased if one of your parents has had one in the past.

Diagnosing neuroendocrine tumours

There are many tests that can be used to diagnose NETs, including blood tests, urine tests, scans, and a biopsy (where a small tissue sample is taken for closer examination).

Different types of scans may also be used to identify or examine tumours. These include:

ultrasound scans – including echocardiograms and endoscopic ultrasound scans

computerised tomography (CT) scans

magnetic resonance imaging (MRI) scans

positron emission tomography (PET) scans

octreotide scans – where mild radioactive liquid is injected into your veins and a special camera is used to highlight any cancerous cells.

Treating neuroendocrine tumours

How a neuroendocrine tumour is treated will depend on your individual circumstances. For example, your treatment will depend on:

  •  where the tumour is
  •  how advanced your condition is
  •  your overall health

Unfortunately, many people are only diagnosed after other parts of their body are affected. However, it may still be possible to surgically remove the tumour, even if it has spread to other parts of your body. If surgery can't be used to completely cure your condition, it may be used to help manage and reduce any symptoms that you have.

It may also be possible to shrink the tumour or stop further growth using treatments that block the blood supply to the tumour (embolisation), or chemotherapy, radiotherapy or radiofrequency ablation (where heat is used to destroy the cells).

Source : http://www.nhs.uk/

Pelvic Cancer

Pelvic cancer refers to a variety of cancers involving the structures and organs in the pelvis. Your pelvic area is the lower portion of the trunk of your body. It contains the pelvic bones, bladder, rectum, and reproductive organs.

Pelvic cancers that can affect both sexes include bladder cancer, anal cancer, rectal cancer, chondrosarcoma (cancer of the cartilage), and osteosarcoma (cancer of the bone). Pelvic cancer can also occur from the spread or metastasis of other cancers from different areas of the body.

Because the pelvic area contains the reproductive organs, there are pelvic cancers that can affect men and women separately. For men, this includes prostate and testicular cancer. For women, pelvic cancer can include cervical, ovarian, uterine or endometrial, vaginal, and vulvar cancer.

Normally, old or damaged cells in your body will stop dividing and die before they can become cancerous. Healthy young cells usually replace these cells. Cancer occurs when old or damaged cells continue to divide and multiply uncontrollably. In pelvic cancer, the malignancy or cancer develops in the structures or organs of the pelvic area.

Treatment and prognosis of pelvic cancer varies depending on the type of cancer and the stage of advancement; your age, medical history, and coexisting conditions or diseases; and other factors. Treatment may include surgery, radiation therapy, hormone therapy, and chemotherapy. In general, diagnosis and treatment in an early stage of development, before cancer cells have spread, offers the best prognosis for a complete cure.

Pelvic cancer can lead to life-threatening complications and can be fatal, especially left undetected and untreated. Seeking regular medical care offers the best chances of discovering pelvic cancer in its earliest, most curable stage, often before symptoms are present. If you have pelvic cancer, following your treatment plan may help reduce your risk of serious complications.

Symptoms of anal and rectal cancer

Anal cancer is a malignancy of the anus, which is the opening that allows the passage of stool. Rectal cancer is a malignancy of the rectum, the final portion of the large intestine that holds stool for elimination. Symptoms of anal and rectal cancer may include:

  •  Blood in the stool or bleeding from the anus
  •  Changes in bowel habits
  •  Itching and discharge from the anus
  •  Narrow stool
  •  Pain or lumps in the anus
  •  Pelvic or abdominal pain

Causes of Pelvic Cancer

Normally cells in your body that are old or damaged will stop dividing and die before they can become cancerous. Healthy young cells usually replace these cells. Pelvic cancer occurs when old or damaged cells to continue to divide and multiply uncontrollably. What causes this to happen is not known for most cancers.

Some cancers have more definite causes. For example, certain types of cancers, such as ovarian cancer, have been linked to mutations of specific genes. Cervical cancer is an example of a cancer that is most often caused by a human papillomavirus (HPV) infection. HPV, which can also cause genital warts, is spread through sexual contact and often has no symptoms. HPV has also been linked to vaginal, vulvar and anal cancer.

Treatment of pelvic cancer begins with seeking regular, routine medical care throughout your life. Regular medical care allows your healthcare provider to best evaluate your risks of developing pelvic cancer and perform routine screening measures, diagnostic testing, and other assessments as needed. These measures greatly increase the chances of detecting pelvic cancer in its earliest, most curable stage.

The goal of pelvic cancer treatment is to permanently cure the cancer or to bring about a complete remission of the disease. Remission means that there is no longer any sign of the disease in your body, although it may recur or relapse later. Pelvic cancer treatment plans use a multifaceted approach. They are individualized based on the type and stage of the disease, your age, your medical history, and any coexisting diseases or conditions.

Treatment of pelvic cancer may include a combination of the following:

  •  Chemotherapy
  •  Dietary counseling to help people with cancer maintain their strength and nutritional status
  •  Hormone therapy
  •  Pain medications
  •  Participation in a clinical trial to test promising new therapies and treatments
  •  Physical therapy to help strengthen the body, increase alertness, reduce fatigue, and improve functional ability during and after cancer treatment
  •  Radiation therapy
  •  Surgery to remove any well-defined tumors or only part of the affected organ or structure
  •  Surgery to remove the entire organ or structure, nearby lymph nodes, and abdominal tissues as needed

What is Crohn's Disease?

Crohn's disease is a chronic inflammatory bowel disease. Inflammatory means that the body's own immune system is attacking the digestive tract anywhere from the mouth to the anus, though usually it attacks areas in the small and large intestines. It usually develops in the late teens/early 20s or in the 50-60 age group. If managed, the disease can be controlled and hopefully prevented from relapsing, though there is currently no cure.


What causes Crohn's?
There is no known single definitive cause for Crohn's disease. As far as we currently know, it is caused by an interaction between your genes, the environment, your lifestyle (eg. smoking) and natural variants in your immune system. Research is still ongoing into finding more answers.


What complications are there?
As Crohn's is a chronic condition, a relapse may happen at any point. This may be evident with a return to your original symptoms, which may include diarrhoea, abdominal pain, weight loss, loss of appetite, and even blood in your stools. You will need to see your GP if you have a relapse.
Crohn's can also affect areas other than the digestive tract. You may get sore, red eyes, painful joints, and unusual rashes on your skin.
In addition, the disease can cause complications in and around the anus. You can get something called a fissure, which is a crack in the skin around the anus, which can bleed. You may also develop fistulae, which are abnormal connections between the digestive tract and the outside. Although unpleasant, these can be treated. Abscesses and piles may also develop.


How is Crohn's disease treated?
There are two goals to managing Crohn's disease. First the disease is brought under control so it doesn't affect you as much (inducing remission) and then you aim to keep it that way (maintaining remission).
One of the most important things to do is stop smoking. Services to assist this are available at your GP or at your hospital.


Inducing remission:
To bring Crohn's under control after a flare, or when first seen by a doctor, a steroid will be used, usually in tablet form, but possibly by a drip into your veins. Side effects of this treatment can include acne and mood changes, but these will not be permanent as you will be slowly taken off the steroid. There may be an option for surgical removal of the bowel however this is not a cure.


Maintaining remission:
To keep your disease under control, there are a variety of options that your doctor will discuss with you. Most people will be on either Mercaptopurine or Azathioprine. It is important to carry on taking these if you start, as stopping increases the chances of relapse. Other drugs, such as Infliximab, are available, though not usually the first choice treatment. If you have had surgery then your doctor may suggest that you take one of the above drugs. Even if you choose not to receive treatment, your doctor will continue with check-ups and monitor your disease.


Crohn's disease and Cancer
Another type of inflammatory bowel disease, Ulcerative Colitis, is associated with an increased risk of bowel cancer. However, as Crohn's can affect all over the digestive tract, the risk of cancer varies. If your small bowel is mainly affected, then it is unlikely to increase your risk of cancer. If it affects the large intestine extensively, often called Crohn's colitis, then the risk increases after 20 years of disease to 7 in 100 people (compared to 5 in 100 of the general population).


Crohn's and Pregnancy
It is important that you talk to your doctor if you are hoping to conceive. Many people with Crohn's have gone on to have healthy children, but there are important things to consider. One of these for women is that if your disease is active, it may be harder to conceive. Most doctors will advise having your disease under control before trying to conceive, as it can complicate pregnancy. Some medications may also have side effects upon your baby, so it is best to discuss this with your doctor.

Functional Bowel disorder

A functional gastrointestinal disorder comprises symptoms arising in the mid or lower gastrointestinal tract that are not attributable to anatomic or biochemical defects. The symptoms include abdominal pain, early satiety, nausea, bloating, distention, and various symptoms of disordered defecation. The three most common functional bowel disorders are irritable bowel syndrome (IBS), constipation, and functional dyspepsia.

Irritable bowel syndrome (IBS)

IBS, the most common functional bowel disorder, is characterized by chronic or recurrent symptoms of lower abdominal pain related to bowel movements, change in bowel habit (diarrhoea, constipation, or alternating), a sense of incomplete rectal evacuation, passage of mucus with stool, and abdominal bloating and distention.

Functional dyspepsia

Functional dyspepsia is characterized by chronic or recurrent pain or discomfort centered in the upper abdomen. Unlike IBS, symptoms are not related to the process of defecation. There is no evidence of organic disease or structural or biochemical abnormality.

 

Abdominal Wall Hernias

What is an  hernia? — Your internal organs and tissues are held in place by a tough outer wall of tissue called the “abdominal wall.” An abdominal hernia is an area in that wall that is weak or torn. Often when there is a hernia, organs or tissues that are normally held in place by the abdominal wall bulge or stick out through the weak or torn spot. 
There are many different kinds of abdominal wall hernias.
Epigastric hernia
Incisional hernia 
Inguinal and femoral hernia 
•Lumbar hernia 
•Obturator hernia 
•Parastomal hernia 
•Perineal hernia 
•Femoral hernia 
•Spigelian hernia
•Umbilical hernia
What are the symptoms of abdominal wall hernias? — Abdominal wall hernias do not always cause symptoms. When they do, they can cause some or all of these symptoms:
A bulge somewhere on the trunk of the body – This bulge can be so small that you don’t even realize it’s there. 
Pain, especially when coughing, straining, or using nearby muscles 
A pulling sensation around the bulge 
Abdominal wall hernias can balloon out and form a sac. That sac can end up holding a loop of intestine or a piece of fat that should normally be tucked inside the belly. This can be painful and even dangerous if the tissue in the hernia gets trapped and unable to slide back into the belly. When this happens, the tissue does not get enough blood, so it can become swollen or even die . 
Should I see a doctor ? — Yes. See a doctor  if you have any of the symptoms of a hernia. In most cases, doctors can diagnose a hernia just by doing an exam. During the exam, the doctor might ask you to cough or bear down while pressing on your hernia. This might be uncomfortable, but it is necessary to find the source of the problem. 
Most of the time, the contents of the hernia can be “reduced,” or gently pushed back into the belly. Still, there are times when the hernia gets trapped and won’t go back in. If that happens, the tissue that is trapped can get damaged. 
If you develop pain around a hernia bulge or feel sick, call your doctor or surgeon right away. 
How are hernias treated? — Not all hernias need treatment right away. But many do need to be repaired with surgery. Surgeons can repair most hernias in 1 of 2 ways. The right surgery for you will depend on the size of your hernia, where on the abdominal wall it is, whether this is the first time it is getting repaired, and what your general health is like. The types of surgery are:
Open surgery – During an open surgery, the surgeon makes an incision near the hernia. Then he or she looks at the tissue that is stuck in the hernia, and if it is healthy, gently pushes it back into place. Sometimes a piece of tissue needs to be removed. Next, the surgeon sews the layers of the abdominal wall back together, so that nothing can bulge through. In some cases, surgeons will also patch the area with a piece of mesh. The mesh takes some of the strain off the abdominal wall. That way the hernia is less likely to happen again. 
Laparoscopic surgery – During laparoscopic surgery, the surgeon makes a few incisions that are much smaller than those used in open surgery. Then he or she inserts long thin tools into the area near the hernia. One of the tools has a camera (called a “laparoscope”) on the end, which sends pictures to a TV screen. The surgeon can look at the picture on the screen to guide his or her movements. Then he or she uses the long tools to repair the hernia using mesh. 
If your hernia has reduced the blood supply to a loop of intestine, your doctor might need to remove that piece of intestine. Then he or she will sew the intestine back together.
The recovery and aftercare for each type of hernia repair is different. Your doctor or nurse can tell you what to expect after your surgery.

Abdominal wall reconstruction

Component separation repair of large or complex abdominal wall defects
An increasing number of patients have large or complex abdominal wall defects. Such defects may result from incisional hernia related to multiple abdominal operations, surgical resection of the abdominal wall, necrotizing abdominal wall infections, or therapeutic open abdomen. The component separation technique, which was first described in 1990 for midline abdominal wall reconstruction, is a type of rectus abdominis muscle advancement flap that allows reconstruction of such large ventral defects. The advantages of the component separation technique are that it restores functional and structural integrity of the abdominal wall, provides stable soft tissue coverage, and optimizes aesthetic appearance.
INDICATIONS — Large or complex abdominal wall defects may be associated with problems such as chronic back pain, respiratory compromise, and altered body image. Patients with symptoms related to these defects or incisional hernias should ideally be repaired. 
Large or complex abdominal wall defects are a particularly challenging surgical problem. Various methods of abdominal wall hernia repair (simple suture repair, mesh repair) using either open or laparoscopic approaches can be used to manage abdominal wall defects, which are most commonly related to incisional hernia. 
The component separation technique, which was first described in 1990, is a very effective method for reconstructing large or complex midline abdominal wall defects in a manner that restores innervated muscle function without tension  sometimes without the need for mesh.
Indications for a component separation technique include the following:
Repair of large, midline abdominal wall incisional hernias (or open abdomen) that cannot be closed primarily
Repair of recurrent, large midline abdominal wall incisional hernias that have failed suture closure or mesh repair
Reconstruction of abdominal wall defects resulting from trauma  or abdominal wall resection related to infection or malignancy
The component separation technique can restore abdominal wall functionality for defects up to 20 cm at the level of the umbilicus. In some patients with extremely large defects, the component separation technique alone may not allow restoration of the abdominal wall without tension. If the defect is too large to allow the flaps to be brought together at the midline, supplemental mesh can be used to bridge the residual defect. 

 

 

 

Emergency surgery 


The term acute abdomen represents the rapid onset of severe symptoms that may indicate potentially life-threatening intra-abdominal pathology that requires urgent surgical assessmnet and sometimes intervention. Abdominal pain is usually a feature, but a pain-free acute abdomen can occur, particularly in older people, in children, in the immunocompromised, and in the last trimester of pregnancy.
Acute abdominal pain is a frequent emergency department presentation. Pain may be located in any quadrant of the abdomen and may be intermittent, sharp or dull, achy or piercing; it may radiate from a focal site and there may be associated symptoms such as nausea and vomiting. Immediate assessment should focus on distinguishing those cases of true acute abdomen that require urgent surgical intervention from those that do not, which can initially be managed conservatively.  Data from the UK suggest that availability and/or access to an experienced surgeon reduces unnecessary admissions while appropriately managing or triaging patients.
The Most Common causes of Acute Abdomen are:

1    Adhesions
2    Incarcerated/strangulated hernia
3    Cholecystitis
4    Gastric ulcer
5    Appendicitis
6    Ectopic pregnancy
7    Pelvic inflammatory disease
8    Acute pancreatitis
9    Acute diverticulitis
10    Ulcerative colitis
11    Crohn's disease
12    Cholelithiasis
13    Gastrointestinal malignancy
14    Hepatic abscess
15    Fitz-Hugh Curtis syndrome
16    Mallory-Weiss tear
17    Abdominal wall haematoma
18    Hereditary Mediterranean fever
19    Typhilitis (neutropenic enterocolitis)
20    Narcotic withdrawal
21    Hepatitis
22    Gastroenteritis
23    Infectious colitis
24    Sickle cell crisis
25    Endometriosis
26    Testicular torsion
27    Kidney stones
28    Pyelonephritis

Emergency Surgery can be defined as surgery that is required to deal with an acute threat to life, organ, limb or tissue caused by external trauma, acute disease process, acute exacerbation of a chronic disease process, or complication of a surgical or other interventional procedure. The skills needed for emergency surgery include the ability to diagmoses appropriately and undertake those abdominal  and soft tissue procedures that need to be performed within appropriate time.

 

 

What are diverticulae?

A diverticulum is a pouch-like structure that can form through points of weakness in the muscular wall of the colon (ie, at points where blood vessels pass through the wall).
Diverticulosis affects men and women equally. The risk of diverticular disease increases with age. It occurs throughout the world but is seen more commonly in developed countries.

What causes diverticular disease?

Diverticulosis — Diverticulosis merely describes the presence of diverticula. Diverticulosis is often found during a test done for other reasons, such as flexible sigmoidoscopy, colonoscopy, or CT Colonography. Most people with diverticulosis have no symptoms and will remain symptom free for the rest of their lives.
A person with diverticulosis may have diverticulitis, or diverticular bleeding.

Diverticulitis — Inflammation of a diverticulum (diverticulitis) occurs when there is thinning and breakdown of the diverticular wall. This may be caused by increased pressure within the colon or by hardened particles of stool, which can become lodged within the diverticulum.
The symptoms of diverticulitis depend upon the degree of inflammation present. The most common symptom is pain in the left lower abdomen. Other symptoms can include nausea and vomiting, constipation, diarrhea, and urinary symptoms such as pain or burning when urinating or the frequent need to urinate.
Simple diverticulitis, which accounts for 75 percent of cases, is not associated with complications and typically responds to medical treatment without surgery.

Complicated diverticulitis occurs in 25 percent of cases and usually requires surgery. Complications associated with diverticulitis can include the following:
•    Abscess: a localized collection of pus
•    Fistula: an abnormal tract between two areas that are not normally connected (eg, bowel and bladder)
•    Obstruction: a blockage of the colon
•    Peritonitis: infection involving the space around the abdominal organ
•    Sepsis: overwhelming body-wide infection that can lead to failure of multiple organs

When to suspect diveritulosis

Diverticulosis is often found during tests performed for other reasons.

Barium enema – This is an x-ray study that uses barium in an enema to view the outline of the lower intestinal tract. This is an older test and has been largely replaced by computed tomography (CT) scan.

Flexible sigmoidoscopy – This is an examination of the inside of the sigmoid colon with a thin, flexible tube that contains a camera.

Colonoscopy – This is an examination of the inside of the entire colon. 

A CT scan is often used to diagnose diverticulitis and its complications. If diverticulitis (not just diverticulosis) is suspected, the above three tests should not be used because of the risk of perforation.

How diverticulae are treated

Diverticulosis — People with diverticulosis who do not have symptoms do not require treatment. However, most clinicians recommend increasing fiber in the diet, which can help to bulk the stools and possibly prevent the development of new diverticula, diverticulitis, or diverticular bleeding. Fiber is not proven to prevent these conditions in all patients but may help to control recurrent episodes in some.  Fruits and vegetables are a good source of fiber. The fiber content of packaged foods can be calculated by reading the nutrition label

Diverticulitis — Treatment of diverticulitis depends upon how severe your symptoms are.

Home treatment — If you have mild symptoms of diverticulitis (mild abdominal pain, usually left lower abdomen), you can be treated at home with a clear liquid diet and oral antibiotics. However, if you develop one or more of the following signs or symptoms, you should seek immediate medical attention:

Temperature >100.1°F (38°C)
Worsening or severe abdominal pain
An inability to tolerate fluids

Hospital treatment — If you have moderate to severe symptoms, you may be hospitalized for treatment. During this time, you are not allowed to eat or drink; antibiotics and fluids are given into a vein.
If you develop an abscess of the colon, you may require drainage of the abscess (usually performed by placing a drainage tube across the abdominal wall) or by surgically opening the affected area.

 

Surgical treatment for diverticolosis/diverticulitis

Surgery — If you develop a generalized infection in the abdomen (peritonitis), you will usually require an emergency operation. A two-part operation may be necessary in some cases.
-The first operation involves removal of the diseased colon and creation of a colostomy. A colostomy is an opening between the colon and the skin, where a bag is attached to collect waste from the intestine. The lower end of the colon is temporarily sewed closed to allow it to heal .
Approximately three to six months later, a second operation is performed to reconnect the two parts of the colon and close the opening in the skin. You are then able to empty your bowels through the rectum. Sometimes patients require up to a year to recover from the first operation, depending on how sick they were.
In non-emergency situations, the diseased area of the colon can be removed and the two ends of the colon can be reconnected in one operation, without the need for a colostomy.

Surgery versus medical therapy — An operation to remove the diseased area of the colon may not be necessary if you improve with medical therapy. However, people who are treated with an operation are felt to be cured, since only 15 percent of people develop further diverticulosis after surgery and only 2 to 11 percent of people need further surgery.
Thus, surgery may be recommended for people with repeated attacks of diverticulitis or if there are severe or repeated episodes of bleeding. The decision depends in part upon your other medical conditions and ability to undergo surgery.
Some healthcare providers recommend surgery after the first attack of diverticulitis in people who are less than 40 to 50 years. The reason for this is that the disease may be more severe in this age group and there may be an increased risk of recurrent disease that will ultimately require surgery. Thus, having surgery at a young age could potentially eliminate the chances of developing worsened disease. The decision to undergo surgery ultimately depends upon your surgeon's recommendations.
In many cases, an elective operation can be performed laparoscopically, using small incisions, rather than the typical vertical (up and down) abdominal incision. Laparoscopic surgery usually allows you to recover more quickly and shortens the hospital stay.

Recovery from diverticulitis — After an episode of diverticulitis resolves, if you have not had a recent colonoscopy, the entire length of the colon should be evaluated to determine the extent of disease and to rule out the presence of abnormal lesions such as polyps or cancer. Recommended tests include colonoscopy, barium enema and sigmoidoscopy, or CT colonography.

Diverticular bleeding 
Most cases of diverticular bleeding resolve on their 
own. However, some people will need further testing or 
treatment to stop bleeding, which may include a colonoscopy, angiography (a treatment that blocks off 
the bleeding artery), bleeding scan, or surgery.

Diverticular colitis
Patients with diverticular disease can develop a segmental colitis most commonly in the sigmoid colon. Segmental colitis associated with diverticula (SCAD) or diverticular colitis is characterized by inflammation in the interdiverticular mucosa without involvement of the diverticular orifices.
 Patients with segmental colitis associated with diverticulosis (SCAD) typically present with chronic diarrhea, cramping abdominal pain primarily in the left lower quadrant, and in some cases intermittent hematochezia
The optimal treatment of segmental colitis associated with diverticulosis (SCAD) has not been well defined and different treatment regime includes Anthibiotics and Luminal antiinflammatory.

Colorectal Cancer

Colorectal cancer, also known as bowel cancer, colon cancer or rectal cancer is any cancer (a growth, lump or a tumour) of the colon and the rectum. The World Health Organization and CDC say it is the second most common cancer worldwide, after lung cancer.

Symptoms of colorectal cancer

 Going to the toilet more often
 Diarrhoea
 Constipation
 A feeling that the bowel does not empty properly after a bowel movement
 Blood in feces (stools)
 Pains in the abdomen
 Bloating in the abdomen
 A feeling of fullness in the abdomen (maybe even after not eating for a while)
 Vomiting
 Fatigue (tiredness)
 Inexplicable weight loss
 A lump in the tummy or a lump in the back passage felt by your doctor
 Unexplained iron deficiency in men, or in women after the menopause


Small Bowel Cancer

Small bowel cancer starts when healthy cells in the lining of the small bowel change and grow out of control, forming a mass called a tumor. A tumor can be cancerous or benign. A cancerous tumor is malignant, meaning it can grow and spread to other parts of the body. A benign tumor means the tumor can grow but will not spread. These changes can take a long time to develop. Both genetic and environmental factors can cause such changes, although the specific causes of small bowel cancer are generally not well understood.

Types of small bowel cancer

There are 5 main types of small bowel cancer:

Adenocarcinoma

Adenocarcinoma is the most common type of small bowel cancer, usually occurring in the duodenum or jejunum. Adenocarcinoma begins in the gland cells of the small bowel.

Sarcoma 

Small bowel sarcoma is generally a leiomyosarcoma, which is a tumor that arises in the muscle tissue that makes up part of the intestine. This type of tumor most often occurs in the ileum. Learn more about sarcoma.

Gastrointestinal stromal tumor (GIST) 

GIST is an uncommon tumor that is believed to start in cells found in the walls of the gastrointestinal (GI) tract, called interstitial cells of Cajal (ICC). GIST belongs to a group of cancers called soft tissue sarcomas. Learn more about gastrointestinal stromal tumors.

Carcinoid tumor 

Carcinoid tumors are classified as neuroendocrine tumors. These are tumors that start in the hormone-producing cells of various organs and generally occur in the ileum. Learn more about carcinoid tumors.

Lymphoma 

Lymphoma is a cancer of the lymph system, which is part of the body’s immune system. Lymphoma that occurs in the small bowel usually occurs in the jejunum or ileum and is most commonly non-Hodgkin lymphoma. Learn more about non-Hodgkin lymphoma.

Proctology is the medical speciality in the diagnosis of disease, prevention and treatment of the anus and rectum, otherwise known as anorectal problems.

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Anal fissure
What is an anal fissure?
An anal fissure is a small tear in the skin around the opening of the anus (the end of the back passage).
The symptoms of anal fissures are:
•Severe pain around the anus during and especially after a bowel movement, which can last several hours.
•Bright red blood, either on the toilet paper or mixed in with the stool.
Anal fissures can occur at any age but are seen more in young adults between the ages of 20-40. They affect both men and women equally and can occur in childhood
What causes anal fissures?
The most common cause of an anal fissure is constipation and passing hard stool, which can damage the lining of the anal canal.
Other causes may be persistent diarrhoea, passing loose stools frequently, childbirth and inflammatory bowel disease
If you see blood in your stool or any other symptoms of an anal fissure you should visit your GP.
What can I do to speed up recovery?
Anal fissures usually heal within a few weeks without any need for medical treatment, but this is not the case for everyone. One common problem is that severe pain may cause people to avoid passing stools, triggering the symptoms of constipation, which may prevent the fissure from healing and lead to chronic anal fissures. Switching to a high fibre diet should help recovery by making it easier to pass stools.
How are anal fissures treated?
While many anal fissures will heal by themselves, some may require medication. There are a number of treatments that will help the fissure to heal, as well as ease the symptoms.
•Softening stools
This allows stool to pass more easily, reducing pain and aiding the healing process. This can be done by increasing the amount of fibre in the diet or through medications called laxatives. These will help your stools retain water, which will make them softer and more bulky.
•Medications
Topical (medicine that you apply directly onto the affected body part) anaesthetics such as lidocaine could be used to numb the area and ease the pain.
Topical Glyceryl Trinitrate 0.2-0.4 %(GTN) is another treatment that can be used if symptoms do not improve, which acts to increase blood flow by expanding nearby vessels, which can help the fissure to heal.
Topical Diltiazem Cream 2% It increases blood flows to smooth muscles and relaxes muscle tone. Topical diltiazem hydrochloride is not licensed in the UK for treating chronic anal fissure or any other indication. Therefore, its use for treating chronic anal fissure is unlicensed.
Botulinum toxin (BTX) can be used for temporary chemical denervation to treat this painful disorder. Its application is by intramuscular injections into either the external or internal anal sphincter muscle. The healing rate is dependent on the BTX dosage. The short-term healing rate (≤ 6 months) is 60–90%, whereas about 50% of the patients show a complete response in long-term follow-up studies (> 1 year).
THD Levorag(®) Emulgel proved to be effective for the re-epithelization of AF and the reduction of pain in the short term in about 80 % of patients. Its use for treating anal fissure is unlicensed a recent trial has demonstrated good results compared with routine treatment and the medication can be purchase from:
http://levorag.co.uk
What happens if the fissure does not heal?
If the fissure does not respond to treatment then you may be referred for further treatment, which could involve some form of surgery. The most common type of surgery used is called advancement flap and internal sphincterotomy. This involves a general anaesthetic and can often be done without requiring an overnight stay in hospital, but can, very rarely, lead to permanent incontinence. Your doctor will explain the options available to you and the risks involved,
Will the anal fissures come back?
Fissures can reappear and a fully healed fissure may come back if a hard stool is passed, which causes further damage. One of the best ways to prevent fissures returning is to avoid becoming constipated.
Some methods to prevent constipation are:
•having a high fibre diet
•using the toilet regularly and ensuring you have enough time to comfortably pass stools
•drinking plenty of water
•taking exercise

Haemorrhoids
What are haemorrhoids?
Haemorrhoids are a result of the inflammation of veins supplying the rectum, anal canal and low rectum.
There are two types:
• Internal, which are inside the anus
• External which are under the skin outside the anus
What causes haemorrhoids?
• Straining too much when opening your bowels. This is sometimes caused by constipation.
• Pregnant women are also prone due to the increased weight use of lower rectal muscles and increased pressure in the abdomen due to the foetus.
• Obesity and prolonged sitting down are also associated.
When to suspect haemorrhoids
Symptoms depend on the type of haemorrhoids - internal or external.
Internal: if you have an inflamed haemorrhoid, you may notice scarlet blood in your stools, on toilet paper or perhaps on underwear.
External: an external haemorrhoid would be visible and you may experience aburning sensation, itching, swelling or pain when attempting to open your bowels.
It is often difficult to tell whether it is a haemorrhoid or something else and you should see your GP to discuss this.
How haemorrhoids are treated
In most cases, haemorrhoids can be relieved in a few days.
Some things that may help are:
• Trying to reduce straining while using the loo.
• Using wet tissue/baby wipes when cleaning yourself after a bowel movement.
• Patting the area to reduce friction created by rubbing the area.
Change your diet to soften stools and help to avoid straining by:
• Increasing your fibre intake. Fibre is found in food such as wholegrain bread, cereals, fruit and vegetables.
• Drinking six glasses of water per day and avoiding caffeine. If you feel constipated too, laxatives may also help.
There are also over the counter therapies available from your pharmacy. Your surgeon, specialist nurse or pharmacist can discuss these with you
Medical treatment for haemorrhoids
Eat plenty of fibre such as fruit, vegetables, cereals, wholegrain bread, etc.
Have lots to drink. Adults should aim to drink at least two litres (6-8 glasses) per day. You will pass much of the fluid as urine, but some is passed out in the gut and softens faeces. Most sorts of drink will do, but alcoholic drinks can cause the body to lose fluids (they are dehydrating) and may not be so good. Too much caffeine should also be avoided.
Fibre supplements. If a high-fibre diet is not helping, you can take fibre supplements (bulking agents) such as ispaghula, methylcellulose, bran or sterculia. You can buy these at pharmacies or get them on prescription. Methylcellulose also helps to soften faeces directly which makes them easier to pass.
Avoid painkillers that contain codeine such as co-codamol, as they are a common cause of constipation. However, simple painkillers such as paracetamol may help.
Toileting. Go to the toilet as soon as possible after feeling the need. Some people suppress this feeling and plan to go to the toilet later. This may result in bigger and harder faeces forming which are then more difficult to pass. Do not strain on the toilet. Piles may cause a feeling of fullness in the rectum and it is tempting to strain at the end to try to empty the rectum further. Resist this. Do not spend too long on the toilet, which may encourage you to strain. (For example, do not read whilst on the toilet.)
Micronized Flavonoid (Diosmin 500mg-Hesperidin) A large meta-analysis of phlebotonics for hemorrhoids in 2012 showed that phlebotonics had significant beneficial effects on bleeding, pruritus, discharge and overall symptom improvement. Phlebotonics also alleviated post-hemorrhoidectomy symptoms.
Flavonoids are off licensed diet supplement and can be purchase from health shops and major on line providers. (Daflon©, Venarex©,Diosmin,)
Surgical treatment for haemorrhoids
The more commonly done procedures include the following:
Injection sclerotherapy - phenol in oil is injected into the tissues at the base of the piles. This causes a scarring (fibrotic) reaction which obliterates the blood vessels going to the piles. The piles then die and drop off, similar to after banding.
Elastic Banding - is a common treatment for grade 2 and 3 piles.
This procedure is usually done by a surgeon in an outpatient clinic, endoscopy or operating theatre. A haemorrhoid is grasped by the surgeon with forceps or a suction device. A rubber band is then placed at the base of the haemorrhoid. This cuts off the blood supply to the haemorrhoid which then dies and drops off after a few days. The tissue at the base of the haemorrhoid heals with some scar tissue.
Infrared coagulation/photocoagulation - this method uses infrared energy to burn and cut off the circulation to the haemorrhoid, which causes it to shrink in size. It seems to be as effective as banding treatment and injection sclerotherapy for first- and second-degree piles.
Diathermy and electrotherapy - use heat energy to destroy the piles. They appear to have similar success rates as infrared coagulation and the risk of any complications is low.
Haemorrhoidectomy (the traditional operation) - an operation to cut away the haemorrhoid(s) is an option to treat grade 3 or 4 piles or for piles not successfully treated by banding or other methods. The operation is done under general anaesthetic and is usually successful. However, it can be quite painful in the days following the operation.
Stapled haemorrhoidopexy - a circular stapling gun is used to cut out a circular section of the lining of the anal canal above the piles. This has the effect of pulling the piles back up the anal canal. It also has the effect of reducing the blood supply to the piles and so they shrink as a consequence. Because the cutting is actually above the piles, it is usually a less painful procedure than the traditional operation to remove the piles.
THD Haemorrhoidal artery ligation - the small arteries that supply blood to the piles are tied (ligated). This causes the haemorrhoid(s) to shrink. As part of procedure Anopexy is performed to reduce the mucosal prolapse oten associated with haemorrhoids. Please visit below web site
http://www.thdlab.co.uk
Strangulated or thrombosed piles
Very painful strangulated or thrombosed piles are uncommon. The pain may be eased by an ice pack (wrapped in a cloth) pressed on for 15-30 minutes. Strong painkillers and medication to soften the stools may also be needed. Surgery (rarely) is needed to remove the haemorrhoid.
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