title: Tracheal overlap: arteriographic sign of parathyroid adenomas in the posterior superior mediastinum.
mesh_terms: D000236:Adenoma / Q000000981:diagnostic imaging* / Q000473:pathology; D006801:Humans; D008479:Mediastinal Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology; D010282:Parathyroid Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology; D011859:Radiography