title: Unilateral exophthalmos: an unusual presentation of primary hyperparathyroidism.
mesh_terms: D000293:Adolescent; D003937:Diagnosis, Differential; D005094:Exophthalmos / Q000209:etiology*; D005870:Giant Cell Tumors / Q000175:diagnosis; D006801:Humans; D006961:Hyperparathyroidism / Q000150:complications* / Q000175:diagnosis; D008297:Male; D009918:Orbital Neoplasms / Q000175:diagnosis