title: Transperineal resection of a retroperitoneal liposarcoma presenting as a perineal mass.
abstract: BACKGROUND
  Liposarcomas can present as giant liposarcomas in the retroperitoneal position.
  
  
  METHODS
  A healthy woman presented with a large recurrent proboscis-type mass at the left gluteus and underwent a transperineal resection of the mass. The patient tolerated the procedure well and was discharged after a short hospitalization.
  
  
  CONCLUSIONS
  Once invasion into adjacent structures has been ruled out, a transperineal resection of giant retroperitoneal liposarcomas can be performed.
authors.affiliation: Department of Obstetrics and Gynecology, Texas Tech University Health Sciences Center, Odessa, Texas 79763, USA. mrwagner@cableone.net
authors.forename: Michel
authors.initials: M
authors.lastname: Wagner
authors.forename: M Gail
authors.initials: MG
authors.lastname: Vanderlee
authors.forename: Jenatta
authors.initials: J
authors.lastname: Freeman
authors.forename: Michael E
authors.initials: ME
authors.lastname: Black
mesh_terms: D001707:Biopsy, Needle; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007150:Immunohistochemistry; D008080:Liposarcoma / Q000175:diagnosis* / Q000601:surgery*; D008279:Magnetic Resonance Imaging / Q000379:methods; D008875:Middle Aged; D019060:Minimally Invasive Surgical Procedures / Q000379:methods*; D009361:Neoplasm Invasiveness / Q000473:pathology*; D009367:Neoplasm Staging; D010502:Perineum / Q000601:surgery; D012186:Retroperitoneal Neoplasms / Q000175:diagnosis* / Q000601:surgery*; D018570:Risk Assessment; D016896:Treatment Outcome