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What is this condition with lots of "spots" in colon? The gene mutation for this?

1 Answer

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Final answer:

The condition referred to is colorectal cancer, where benign polyps in the colon can turn into malignant tumors, often due to mutations in repair genes like the APC gene. Individuals with a family history of colorectal cancer and certain lifestyle factors are at higher risk, making early detection through screening essential.

Step-by-step explanation:

The condition with lots of "spots" in the colon is likely referring to colorectal cancer, which is often signaled by various symptoms, including constipation or diarrhea, cramping, abdominal pain, and rectal bleeding. Colorectal cancer can begin as benign mucosal growths called polyps, which can evolve into malignant tumors. A significant factor in the development of this type of cancer is mutations in repair genes; these are genes responsible for correcting DNA errors during cell division. These mutations may occur in various genes, including tumor suppressor genes, which when functioning normally, can prevent uncontrolled cell division. One such tumor suppressor gene often associated with colorectal cancer is the APC gene, and mutations here can lead to familial adenomatous polyposis, a condition that can develop into colorectal cancer if not managed properly.

Colorectal cancer is more likely to develop in individuals with a family history of the disease, and lifestyle factors such as smoking, excessive alcohol consumption, and a diet high in animal fat and protein are also risk factors. Screening methods like fecal occult blood tests and colonoscopy are recommended for early detection, particularly for those above the age of 50.