FAP is a syndrome characterized by a large number of noncancer (benign) polyps in the colon and rectum. Without treatment, a person with FAP has a nearly 100% risk of colorectal cancer.
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Several rare syndromes raise the risk for colorectal cancer. These disorders include Turcot syndrome, Peutz-Jeghers . syndrome, juvenile polyposis coli, and MUTYH-associated polyposis.
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