Cancer

Immune system boost could prevent lung cancer

Genomic differences related to the immune system may play a key role in the early development of lung cancer. That finding, published April 23, 2019, in Nature Communications, reveals potential for developing new therapeutics ...

Cancer

Q&A: Preventing colon cancer with screening, early detection

Dear Mayo Clinic: Are there ways to prevent colon cancer? What about early symptoms to watch for? I just turned 50, and I've heard colon cancer is more common as you get older. I'd like to lower my risk of getting this disease ...

Cancer

Blood-based colon cancer screen shows promise

If caught early, nearly all cases of colon cancer are curable. Though this should make screening tests straightforward, colon cancer screening suffers from a paradoxical combination of low compliance rates and overdiagnosis.

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Colorectal cancer, commonly known as bowel cancer, is a cancer from uncontrolled cell growth in the colon, rectum, or appendix. Symptoms typically include rectal bleeding and anemia which are sometimes associated with weight loss and changes in bowel habits.

Most colorectal cancer occurs due to lifestyle and increasing age with only a minority of cases associated with underlying genetic disorders. It typically starts in the lining of the bowel and if left untreated, can grow into the muscle layers underneath, and then through the bowel wall. Screening is effective at decreasing the chance of dying from colorectal cancer and is recommended starting at the age of 50 and continuing until a person is 75 years old. Localized bowel cancer is usually diagnosed through sigmoidoscopy or colonoscopy.

Cancers that are confined within the wall of the colon are often curable with surgery while cancer that has spread widely around the body is usually not curable and management then focuses on extending the person's life via chemotherapy and improving quality of life. Colorectal cancer is the fourth most commonly diagnosed cancer in the world, but it is more common in developed countries. Around 60% of cases were diagnosed in the developed world. It is estimated that worldwide, in 2008, 1.23 million new cases of colorectal cancer were clinically diagnosed, and that it killed 608,000 people.

This text uses material from Wikipedia licensed under CC BY-SA