A 65-year-old female was analyzed because of obstipation and hypercalcaemia, which was the result of primary hyperparathyroidism. The parathyroid adenoma was ectopically located. Initial physical examination was performed, followed by subsequent laboratory and ultrasound examination, tc-99m sestamibi scintigraphy and computed tomography. It revealed a parathyroid gland with an ectopic localization dorsally of the esophagus. The ectopic parathyroid adenoma was surgically removed, and her complaints disappeared.