NCI Dictionary of Cancer Terms

The NCI Dictionary of Cancer Terms features 8,380 terms related to cancer and medicine.

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Turcot syndrome
(ter-KOH SIN-drome)
A rare, inherited disorder in which polyps (abnormal growths of tissue) form on the inside walls of the colon and rectum, and tumors form in the brain. There are two types of Turcot syndrome, which are caused by mutations (changes) in different genes. People with Turcot syndrome have a higher-than-normal risk of colorectal cancer and brain cancer, especially glioblastoma and medulloblastoma.