“…In various studies, the association of hypercalcemia and peptic ulcer is well established [1, 2, 3, 4], while in others this matter is still under debate [5, 6, 7, 8, 9, 10]. The fact is that 12% of patients with primary hyperparathyroidism have peptic ulcer-related symptoms [11, 12], and these symptoms can be relieved after surgical removal of the abnormal parathyroid gland(s) because of the reported reduction of elevated basal acid output (BAO) [1, 2, 3, 4].…”