Turcot syndrome

What it is

Turcot syndrome is a historical term for the combination of brain tumors — including gliomas — with inherited conditions that cause intestinal polyps and colorectal cancer. It reflects an underlying inherited predisposition and overlaps with conditions now understood at the genetic level.

Understanding Turcot syndrome

Turcot syndrome describes the co-occurrence of brain tumors and inherited polyposis/colorectal cancer conditions. With improved genetic understanding, the cases historically grouped under "Turcot syndrome" are now recognized as belonging to specific inherited conditions — primarily familial adenomatous polyposis (from APC gene changes, associated with certain brain tumors) and Lynch syndrome / mismatch repair deficiency (associated with gliomas). So "Turcot syndrome" is somewhat of an umbrella historical term rather than a single distinct entity. Its relevance to gliomas is mainly through the mismatch repair-deficient conditions, which predispose to gliomas. Recognizing the underlying genetic condition matters for the patient and family. Understanding Turcot syndrome clarifies a historical term linking brain tumors (including gliomas) to inherited polyp conditions.

Why it matters

Understanding Turcot syndrome helps patients and families interpret this historical term — recognizing that it links brain tumors, including gliomas, to inherited conditions now understood genetically, with implications for screening and family risk.