This 26-years-old male presented with signs and symptoms of hyperthyroidism and was submitted to an endocrine evaluation. After 3 mo, the patient developed severe systemic hypertension. There was no family history of hypertension or other diseases. Endocrine hypertension and a rare syndrome of multiple endocrine neoplasia (MEN) type 2 were diagnosed. The evaluation disclosed the presence of bilateral pheochromocytoma, medullary thyroid carcinoma and parathyroid adenoma. The early diagnosis led to specific treatment and a favorable evolution in this case. Diagnostic […]

Primary hyperparathyroidism (PHP) is a frequent endocrinopathy. Increased serum calcium levels may be considered as a potential marker for parathyroid autonomy and this explains why PHP should be routinely investigated in whoever presents with hypercalcemia. High or inappropriately normal PTH levels in the presence of hypercalcemia are very suggestive of PHP. On the other hand, PHP is very unlikely in the absence of hypercalcemia. Extracellular calcium concentrations may be evaluated by the measurement of total or ionized calcium, but the […]