title: Simultaneous occurrence of cerebellar medulloblastoma and pituitary adenoma: A case report.
abstract: OBJECTIVE
  We present the unusual occurrence of two distinct neoplasms in a 42-year-old woman with an operated pituitary adenoma 18 years ago.
  
  
  METHODS
  Clinical history, magnetic resonance imaging studies and histopathological findings were utilized for our diagnostic considerations.
  
  
  RESULTS
  Concomitant presence of a cerebellar medulloblastoma secondary disseminated within the spinal canal and a pituitary macroadenoma, was identified.
  
  
  CONCLUSIONS
  To the best of our knowledge, this is the first reported case in which these two neoplasms are simultaneously occurred in the same individual. A short review of the literature is performed.
authors.affiliation: Department of Pathology, Hellenic Red Cross Hospital, Athens, Greece. vassilissamaras@yahoo.gr.
authors.forename: Vassilis
authors.initials: V
authors.lastname: Samaras
authors.forename: Efstathios
authors.initials: E
authors.lastname: Samaras
authors.forename: Ioanna
authors.initials: I
authors.lastname: Stergiou
authors.forename: Paraskevi
authors.initials: P
authors.lastname: Konstantopoulou
authors.forename: Christos
authors.initials: C
authors.lastname: Arnaoutoglou
authors.forename: Marianthi
authors.initials: M
authors.lastname: Arnaoutoglou
authors.forename: Vassilis
authors.initials: V
authors.lastname: Varsos
authors.forename: Calypso
authors.initials: C
authors.lastname: Barbatis