Primary hyperparathyroidism and acute pancreatitis during pregnancy. Report of a case and a review of the English and Japanese literature.

The simultaneous occurrence of primary hyperparathyroidism (PHPT) and pancreatitis during pregnancy is very rare. We present a case of concurrent PHPT and pancreatitis in pregnancy and review 13 cases reported in the English and Japanese literature. Two maternal and three fetal deaths occurred. Mortality seemed to be related to delayed resection of the parathyroid tumor. Morphologically, severe pancreatitis was only seen in three cases, whereas even edematous or focal pancreatitis caused the same symptoms as clinically severe pancreatitis. Acute pancreatitis should be kept in mind in the differential diagnosis of unexplained nausea and abdominal pain during pregnancy, and hyper-or normocalcemia in the severe form of pancreatitis should be a clue to concurrent PHPT.