Acute pancreatitis associated with hypercalcemia.  A report of two cases. 
Hypercalcemia due to hyperparathyroidism is a rare etiology for acute pancreatitis, oscillating between 1.5 and 7% in the different series.  Although the cause-effect relationship and the pathophysiology of the condition are not clear, it seems that the association among them is not incidental, and serum calcium could be a major risk factor, so that pancreatitis would come to occur during severe hypercalcemia attacks.  Mutations in different genes have been proposed as well to justify why only some patients with primary hyperparathyroidism and hypercalcemia develop acute pancreatitis.  References to cases like these ones are rare in the literature.  We report two patients with acute pancreatitis associated with hyperparathyroidism and hypercalcemia, one of them with a fatal outcome.