What is Carcinoid Tumour of the Rectum?Carcinoid rectum is a localized rare cancer of the rectum. Cancer of the rectum is known as the Carcinoid rectum. It is a rare tumor and accounts for 1.8% of all cancers of the anal and rectal region. It is more common in males as compared to females. The mean age for the development of carcinoid tumors of the rectum is 55 years. The marked symptoms of the cancer of the rectum are bleeding from the rectum and diarrhea.
Disease CausesCarcinoid tumors of the rectum are caused by faulty changes in certain types of genes called oncogenes and tumor suppressor genes. Oncogenes are responsible for the natural programmed death of normal cells in the body; a mutation in this gene can lead to rapid cell multiplication and division, leading to cancer.
Signs and SymptomsMost patients with carcinoid rectum do not show any signs and symptoms during the initial stages of the disease. The common symptoms which lead to diagnosis are:
- Presence of blood in the stool (feces)
- Pain in the abdomen
- Inability to pass stool (defecate) due to blockage
- Bloating of the abdomen (gas in the abdomen)
- Skin flushing
- Feeling as if the bowels are not empty after defecation
- Constant Fatigue
DiagnosisThe following diagnostic tests and procedures can be used to make a diagnosis. These are
- Endoscopic examination of the anus, rectum, and large intestine. Endoscopy is a procedure that allows the doctor to visualize the internal organs of the body directly through the endoscope.
- Computed tomography (CT-pelvis) helps to differentiate squamous cell cancer of the rectum from anal cancer.
- Biopsy of the lesion/tumor and histopathological examination