title: Giant retroperitoneal dedifferentiated liposarcoma.
abstract: BACKGROUND
  Liposarcoma is the most frequent type of retroperitoneal sarcomas. Dedifferentiated liposarcoma is the least common subtype and is an extremely rare tumor.
  
  
  METHODS
  We present the case of a 53-year-old male who was referred with a giant retroperitoneal mass. The patients' mass was deemed unresectable by the previous institution and received chemotherapy with no benefit. We macroscopically removed the 38x32 cm mass with right nefrectomy. Pathological examination revealed dedifferentiated liposarcoma.
  
  
  CONCLUSIONS
  Surgery is the gold standart in the treatment of retroperitoneal sarcomas. Giant masses present a challenge for the surgeon with possible major vascular injuries and multiorgan resections. Therefore it is important for these patients to be referred for surgery without delay.
  
  
  BACKGROUND
  Dedifferentiated liposarcoma, Liposarcoma, Retroperitoneal sarcoma.
authors.forename: Kemal
authors.initials: K
authors.lastname: Beksac
authors.forename: Bulent
authors.initials: B
authors.lastname: Aksel
authors.forename: Fisun Ardic
authors.initials: FA
authors.lastname: Yukruk
authors.forename: Olcay
authors.initials: O
authors.lastname: Kandemir
mesh_terms: D013505:Digestive System Surgical Procedures / Q000379:methods; D006801:Humans; D008080:Liposarcoma / Q000473:pathology* / Q000601:surgery*; D008297:Male; D008875:Middle Aged; D012186:Retroperitoneal Neoplasms / Q000473:pathology* / Q000601:surgery*; D016896:Treatment Outcome