Multiple endocrine neoplasia type I.

An adult woman 43 years old, with Multiple Endocrine Neoplasia type 2A (MEN2A). Clinical diagnosis of MEN2A was made based on the chief complaints of abdominal pain and a lump in the front left side area of neck accompanied with weight loss, from laboratory examination revealed an increased level of plasma levels of calcitonin levels with the result of 6359 pg/ml and 24 hours metanephrine urine levels was 534 μg/24 hours. On the results of thyroid ultrasound examination showed nodules with malignant characteristics, multiple parathyroid gland hyperplasia and the discovery of a solid mass in the left adrenal gland area by an abdominal CT Scan with and without contrast. MEN2A case is considered as one of the few endocrine malignancies with a rare incidence especially in Indonesia. Keyword: Multiple endocrine neoplasia, thyroid, pheochromocytoma, endocrine.