Colorectal carcinoma

What is Colorectal carcinoma?


Colorectal cancer (also known as colon cancer, rectal cancer or bowel cancer) is the development of cancer in the colon or rectum (parts of the large intestine). It is due to the abnormal growth of cells that have the ability to invade or spread to other parts of the body. Signs and symptoms may include blood in the stool, a change in bowel movements, weight loss, and feeling tired all the time.

Risk factors for colorectal cancer include lifestyle, older age, and inherited genetic disorders. Genetic disorders only occur in a small fraction of the population. A diet high in red, processed meat, while low in fiber increases the risk of colorectal cancer. Other diseases such as inflammatory bowel disease, which includes Crohn's disease and ulcerative colitis, can increase the risk of colorectal cancer. Some of the inherited genetic disorders that can cause colorectal cancer include familial adenomatous polyposis and hereditary non-polyposis colon cancer; however, these represent less than 5% of cases. It typically starts as a benign tumor, often in the form of a polyp, which over time becomes cancerous.

Bowel cancer may be diagnosed by obtaining a sample of the colon during a sigmoidoscopy or colonoscopy. This is then followed by medical imaging to determine if the disease has spread. Screening is effective for preventing and decreasing deaths from colorectal cancer. Screening is recommended starting from the age of 50 to 75. Their general use is not recommended for this purpose, however, due to side effects.

Treatments used for colorectal cancer may include some combination of surgery, radiation therapy, chemotherapy and targeted therapy. Cancers that are confined within the wall of the colon may be curable with surgery while cancer that has spread widely are usually not curable, with management focusing on improving quality of life and symptoms. Five year survival rates in the United States are around 65%. Globally, colorectal cancer is the third most common type of cancer making up about 10% of all cases. It is more common in developed countries, where more than 65% of cases are found. It is less common in women than men.

Questions and answers on "Colorectal carcinoma"

My father died four days ago. Before we took him to ER, he was suffering colon cancer . I know he was in great pain at the time. I want to know why...

doctor1 MD

Sorry to hear about your fathers demise. Severe pain can cause redness and flushing of face. It is more obvious in fair skinned people. Circulatory...

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My mom 79 had colon cancer that mestasised (?) to the liver she is a 6 year survivor of both....has had regular yearly check ups a little...

doctor1 MD

The life expectancy for stage 4 pancreatic cancer is very low and is worst among all forms of cancers.
The median chances of survival for patients...

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my mother is suffering from colon cancer since eight month. recently she has an operation under a colorectal surgeon mr. A.K.M FAZLUL HAQUE IN...

doctor1 MD

Whether chemotherapy is required or not depends upon the stage of the disease. If you can post the details of biopsy report after operation, then I...

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Recent questions on  Colorectal carcinoma

doctor1 MD

I am having trouble with my bowels and colon . I have polyps even though a large one was removed about a year ago. I have bowel movements 3 or 4...

doctor1 MD

I had no symptoms all day, but tonight I have four bowel movements all completely red blood no solids, I'm a 58 year old male with colonoscopy at...

doctor1 MD

I believe that I may suffer with hemmoroids. I do not experience any bleeding or pain. I do not have any external protrusions, but I constantly...

doctor1 MD

My husband has colon cancer spread to the liver. The tumor is in the sigmoid colon . A stent was put in to try to help his obstructed bowel but it...

doctor1 MD

I have had a discomfort or some could say Pain in my lower right abdominal area for the last 3 months I have had bowel changes on and off. I can...

doctor1 MD

My father died four days ago. Before we took him to ER, he was suffering colon cancer . I know he was in great pain at the time. I want to know why...

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