Multiple endocrine neoplasia type 2A
Alerts and Notices
Synopsis
Patients are at risk of developing tumors in the thyroid, parathyroid, and adrenal glands as well as nerve defects such as neuromas. MEN2A is characterized by medullary thyroid carcinomas, primary hyperparathyroidism, and pheochromocytomas.
MEN2A often manifests before the fourth decade of life (most often between the ages of 5 and 25 years). Diarrhea and medullary thyroid carcinoma are usually the initial presenting symptoms. Other findings include cervical lymphadenopathy, depressed mood, constipation, fatigue, headache, flushing, hypertension, memory impairment, pruritus, and palpitations.
Related topics: MEN1, MEN2B
Codes
ICD10CM:E31.22 – Multiple endocrine neoplasia [MEN] type IIA
SNOMEDCT:
721188000 – Multiple endocrine neoplasia type 2A
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Diagnostic Pearls
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Differential Diagnosis & Pitfalls
- Familial hyperparathyroidism
- Familial hyperparathyroidism-jaw tumor syndrome
- Sporadic medullary thyroid carcinoma
- Other types of thyroid cancers
- Sporadic pheochromocytoma
- Parathyroid carcinoma
- Nonthyroidal neck masses
- Von Hippel-Lindau (VHL) syndrome
- Neurofibromatosis type 1
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Therapy
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References
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Last Reviewed:09/14/2020
Last Updated:01/19/2022
Last Updated:01/19/2022