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Multiple endocrine neoplasia type 2: From molecular genetics to precision therapy
Daniel Bulzico1, Elisa Lamback2, Catherine Skefos3
1Nuclear Medicine Service and Endocrine Oncology Unit, Brazilian National Cancer Institute, Praça Cruz Vermelha, 23, Rio de Janeiro, RJ 20230-130, Brazil.
None:
Multiple endocrine neoplasia type 2 is an autosomal dominant hereditary syndrome characterized by a predisposition to medullary thyroid carcinoma and pheochromocytoma. The discovery of the RET proto-oncogene as the molecular driver of this syndrome has revolutionized the management of this disease, enabling presymptomatic diagnosis of medullary thyroid carcinoma, which leads to prophylactic thyroidectomy, screening for pheochromocytomas, and the discovery of systemic therapies that control advanced disease. This article reviews genotype-phenotype correlations, clinical manifestations, and current therapeutic strategies, including the use of selective tyrosine kinase inhibitors. In addition, we propose an algorithm for the treatment of advanced medullary thyroid carcinoma and metastatic pheochromocytoma.
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