title: A large intrathoracic parathyroid adenoma.
abstract: A case is described in which an unusually large parathyroid adenoma was visible on the plain chest radiograph taken during the investigation of hypercalcaemia. This was diagnosed preoperatively and a scheme is suggested whereby such a disgnosis can now readily be made. The differential diagnosis is discussed ant the literature is reviewed.
mesh_terms: D000236:Adenoma / Q000150:complications / Q000175:diagnosis*; D000368:Aged; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D006934:Hypercalcemia / Q000209:etiology; D010282:Parathyroid Neoplasms / Q000150:complications / Q000175:diagnosis*; D013899:Thoracic Neoplasms / Q000175:diagnosis*