Familial multiple polyposis syndrome, also known as familial adenomatous polyposis, is an inherited malignancy that develops in the rectum and large intestine. Individuals with the typical form of familial multiple polyposis may generate many non-malignant polyps in the colon as early as their adolescence. These polyps will develop cancer unless the colon is eliminated.
Furthermore, in typical familial multiple polyposis, the average age wherein a person gets colon cancer is 39 years. However, several patients have a form of the illness known as attenuated familial multiple polyposis, which causes polyp development to be slowed. For attenuated familial multiple polyposis, the average life expectancy of colorectal cancer beginning is 55 years.