title: Extramedullary multiple myeloma presenting as a pituitary mass lesion.
abstract: BACKGROUND
  A plasmocytoma involving the pituitary gland is an extremely rare entity, with approximately 22 cases of solitary myeloma or multiple myeloma presenting with sellar mass reported in the literature so far.
  
  
  METHODS
  Here, we report the case of a 71-year-old female patient affected by an extramedullary IgG-lambda multiple myeloma presenting as a pituitary mass lesion. We summarize the diagnostic approaches that confirmed the diagnosis of multiple myeloma and describe treatment outcome after therapy.
  
  
  CONCLUSIONS
  Intrasellar plasmocytoma though rare, should be considered in the differential diagnosis of a pituitary mass lesion, since associated with different therapeutic and prognostic implications. Physicians should be alert for intrasellar plasma cell tumors in case of well preserved anterior pituitary function in combination with cranial nerve neuropathies and sellar destruction.
authors.affiliation: Medizinische Klinik Campus Innenstadt, Klinikum der LMU, Munich, Germany. dimopoulou@mpipsykl.mpg.de
authors.forename: C
authors.initials: C
authors.lastname: Dimopoulou
authors.forename: S
authors.initials: S
authors.lastname: Ormanns
authors.forename: S
authors.initials: S
authors.lastname: Eigenbrod
authors.forename: U
authors.initials: U
authors.lastname: Müller-Lisse
authors.forename: B
authors.initials: B
authors.lastname: Emmerich
authors.forename: M
authors.initials: M
authors.lastname: Reincke
mesh_terms: D020434:Abducens Nerve Diseases / Q000209:etiology* / Q000503:physiopathology; D000368:Aged; D001859:Bone Neoplasms / Q000556:secondary; D004172:Diplopia / Q000209:etiology; D017809:Fatal Outcome; D005260:Female; D006801:Humans; D008479:Mediastinal Neoplasms / Q000556:secondary; D009101:Multiple Myeloma / Q000473:pathology / Q000556:secondary* / Q000628:therapy; D060787:Neoplasm Grading; D010911:Pituitary Neoplasms / Q000473:pathology / Q000503:physiopathology / Q000556:secondary* / Q000628:therapy; D012186:Retroperitoneal Neoplasms / Q000556:secondary