Related Experiment Video
Updated: Mar 31, 2026
06:08
Establishment and Characterization of Patient-Derived Xenograft Models of Anaplastic Thyroid Carcinoma and Head and Neck Squamous Cell Carcinoma
Published on: June 2, 2023
2.4K
Hereditary Medullary Thyroid Cancer Genotype-Phenotype Correlation
Karin Frank-Raue1, Friedhelm Raue2
1Endokrinologische Gemeinschaftspraxis, Brückenstr 21, 69120, Heidelberg, Germany. karin.frankraue@raue-endokrinologie.de.
Summary
Multiple endocrine neoplasia type 2 (MEN2) management advances with RET proto-oncogene mutation insights. Personalized prophylactic thyroidectomy decisions now integrate genotype with clinical data, especially calcitonin levels.
Area of Science:
- Endocrinology
- Genetics
- Oncology
Background:
- Multiple Endocrine Neoplasia type 2 (MEN2) encompasses MEN2A and MEN2B syndromes.
- MEN2A variants include classical MEN2A, MEN2A with cutaneous lichen amyloidosis, MEN2A with Hirschsprung's disease, and familial medullary thyroid carcinoma (FMTC).
- MEN2B is characterized by MTC, pheochromocytoma, and mucosal neuromas.
Purpose of the Study:
- To review the expanded knowledge of MEN2 basic and clinical aspects.
- To highlight the genotype-phenotype correlations in hereditary MTC.
- To discuss personalized management strategies for MEN2, including prophylactic thyroidectomy and biochemical screening.
Main Methods:
- Review of current literature on MEN2.
- Analysis of genotype-phenotype correlations of RET proto-oncogene mutations.
- Stratification of RET mutations into risk levels (highest, high, moderate).
Main Results:
- Hereditary MTC is caused by gain-of-function RET mutations with strong genotype-phenotype correlations.
- RET mutations are stratified into risk levels guiding management.
- Personalized management integrates genotype with clinical data, particularly serum calcitonin (CTN) levels, for thyroidectomy decisions.
Conclusions:
- Prophylactic thyroidectomy timing in MEN2 is increasingly personalized.
- Serum CTN levels are crucial for guiding thyroidectomy decisions, especially in moderate-risk groups.
- Personalized management extends to screening for pheochromocytoma and primary hyperparathyroidism.
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