"An exophytic mandibular brown tumor": an unusual presentation of primary hyperparathyroidism.

CASE REPORT: A case of 35-year-old male patient with previously undiagnosed primary hyperparathyroidism who presented with an atypical exophytic mandibular swelling is reported.

PURPOSE: The aim is to alert the clinicians to include this entity although extremely rare, in the differential diagnosis of swellings in the maxillofacial region and to highlight another remarkable aspect in the multitude of presentations associated with primary hyperparathyroidism especially in the setting of normocalcemia.