title: Multiple myeloma mimicking pituitary adenoma.
abstract: A case of multiple myeloma which presented as a solitary intrasellar tumor is reported. The initial radiographic and light microscopic findings were interpreted as being consistent with pituitary adenoma. Subsequently, when systemic disease developed and a bone marrow biopsy demonstrated multiple myeloma, the histopathologic diagnosis of the sellar lesion was established retrospectively.
mesh_terms: D000236:Adenoma / Q000473:pathology*; D000328:Adult; D003937:Diagnosis, Differential; D006801:Humans; D009682:Magnetic Resonance Spectroscopy; D008297:Male; D009101:Multiple Myeloma / Q000473:pathology*; D009364:Neoplasm Recurrence, Local / Q000473:pathology; D010902:Pituitary Gland / Q000473:pathology; D010911:Pituitary Neoplasms / Q000473:pathology*