title: Polycythemia vera and primary hyperparathyroidism.
abstract: A patient with the clinical manifestations of polycythemia and hypercalcemia underwent an extensive examination for occult neoplasm. No malignancy was found; however, a parathyroid adenoma was excised. After its removal, the hypercalcemia and polycythemia disappeared during a two-year follow-up period.
mesh_terms: D000236:Adenoma / Q000150:complications / Q000601:surgery; D005500:Follow-Up Studies; D006801:Humans; D006934:Hypercalcemia / Q000209:etiology; D006961:Hyperparathyroidism / Q000209:etiology*; D010282:Parathyroid Neoplasms / Q000150:complications / Q000601:surgery; D011087:Polycythemia Vera / Q000209:etiology*