prophylactic thyroidectomy
Surgical removal of the thyroid gland in asymptomatic individuals at high genetic risk for developing medullary thyroid carcinoma.
Full Definition
Prophylactic thyroidectomy involves surgical removal of the thyroid gland in genetically predisposed individuals before the development of clinically apparent medullary thyroid carcinoma. This preventive intervention is primarily indicated in patients with germline RET mutations associated with MEN2A and MEN2B syndromes. The timing of surgery depends on the specific RET mutation risk classification, with highest-risk mutations requiring intervention in early childhood. Post-operative management includes lifelong thyroid hormone replacement and calcium monitoring. This procedure exemplifies precision medicine approaches in hereditary endocrine cancer syndromes.
Usage
Usage note: Always specify genetic indication when discussing prophylactic procedures.
In Context
- "The child with MEN2B underwent prophylactic thyroidectomy at age 5 due to the highest-risk RET mutation." — Pediatric case management
- "Genetic counseling preceded the decision for prophylactic thyroidectomy in this RET mutation carrier." — Genetic consultation