Metastatic Parathyroid Carcinoma in a Young Adult With Recurrent Hypercalcemia and Acute Necrotizing Pancreatitis.

Parathyroid carcinoma (PC) is an extremely rare form of endocrine cancer, accounting for a very small proportion of primary hyperparathyroidism cases. Even more extraordinary is metastatic PC presenting with complications such as severe hypercalcemia and pancreatitis. In this report, we present the case of a 33-year-old male patient who developed metastatic PC with recurrent hypercalcemia and acute necrotizing pancreatitis. This case sheds light on the complexities of diagnosing and managing this rare and aggressive condition.