hereditary cancer syndrome
A genetic condition caused by inherited mutations that significantly increase cancer risk.
Full Definition
A hereditary cancer syndrome is a genetic disorder caused by inherited germline mutations in specific genes that predispose individuals to developing cancer at higher rates and often at younger ages than the general population. These syndromes typically follow Mendelian inheritance patterns and may be associated with multiple cancer types or specific patterns of malignancies. Common examples include hereditary breast and ovarian cancer syndrome (BRCA1/BRCA2), Lynch syndrome (mismatch repair genes), and Li-Fraumeni syndrome (TP53). Individuals with hereditary cancer syndromes require specialized surveillance protocols, risk-reducing interventions, and genetic counseling for family members. Identification of these syndromes has important implications for treatment selection and family screening.
Usage
Usage note: Distinguish from familial cancer clustering, which may not have an identified genetic cause.
In Context
- "Genetic testing confirmed a hereditary cancer syndrome in the patient's family." — Genetic counseling report
- "Patients with hereditary cancer syndromes require enhanced surveillance protocols." — Clinical guidelines