title: Giant retroperitoneal sarcoma: case report.
abstract: OBJECTIVE
  To report a new case of giant retroperitoneal mass with silent beginning.
  
  
  METHODS
  We present the case of a 36 year old man with a giant retroperitoneal liposarcoma 35 × 15 cm in size. The only symptom was a one month history of minimal  abdominal pain.
  
  
  CONCLUSIONS
  Liposarcoma is the most frequent retroperitoneal mass. In most of the cases clinical symptoms are silent, being this the reason why diagnosis is late  and the size is large. The best image options are CT scan or MRI but final diagnosis is based on pathology results. Its treatment is surgery and relapse is very  usual.
authors.affiliation: Urology Department, Hospital de Cabueñes, Gijón, Spain. spello84@hotmail.com
authors.forename: S
authors.initials: S
authors.lastname: Fernandez-Pello
authors.forename: M
authors.initials: M
authors.lastname: Rivas
authors.forename: L
authors.initials: L
authors.lastname: Rodriguez Villamil
authors.forename: I
authors.initials: I
authors.lastname: Fernandez
authors.forename: J R
authors.initials: JR
authors.lastname: Perez-Carral
authors.forename: P
authors.initials: P
authors.lastname: Benito
authors.forename: F J
authors.initials: FJ
authors.lastname: Cuervo
authors.forename: A
authors.initials: A
authors.lastname: Alemany
authors.forename: R A
authors.initials: RA
authors.lastname: Alonso
mesh_terms: D015746:Abdominal Pain / Q000209:etiology; D000328:Adult; D006801:Humans; D008080:Liposarcoma / Q000150:complications / Q000000981:diagnostic imaging / Q000473:pathology*; D008297:Male; D011859:Radiography; D012186:Retroperitoneal Neoplasms / Q000150:complications / Q000000981:diagnostic imaging / Q000473:pathology*; D047368:Tumor Burden