title: Retroperitoneal schwannomas.
abstract: BACKGROUND
  Retroperitoneal schwannomas are very rare and are usually found incidentally.
  
  
  METHODS
  Two rare cases of retroperitoneal schwannomas are reported. Both were incidentally found during US scans for non-specific epigastric pain and were initially diagnosed as non-secreting retroperitoneal tumors. The diagnosis was confirmed by CT scan. In both patients the tumors were resected. The definitive diagnosis was possible by histopathology.
  
  
  CONCLUSIONS
  Although the preoperative assessment of a retroperitoneal tumor may be indicative of a retroperitoneal schwannoma, the definitive diagnosis is possible only by histopathology after surgical removal of the tumor.
authors.affiliation: Didimotichon General Hospital, Didimotichon, Greece.
authors.forename: Dousan
authors.initials: D
authors.lastname: Veliovits
authors.forename: Aliki
authors.initials: A
authors.lastname: Fiska
authors.forename: Georgios
authors.initials: G
authors.lastname: Zorbas
authors.forename: Antonios-Apostolos K
authors.initials: AA
authors.lastname: Tentes
keywords: adrenal gland; retroperitoneum; schwannoma