title: Percutaneous radiofrequency ablation for treatment of recurrent retroperitoneal liposarcoma.
abstract: Percutaneous CT-guided radiofrequency ablation (RFA) is becoming more and more established in the treatment of various neoplasms, including retroperitoneal tumors of the kidneys and the adrenal glands. We report the case of RFA in a patient suffering from the third relapse of a retroperitoneal liposarcoma in the left psoas muscle. After repeated surgical resection and supportive radiation therapy of a primary retroperitoneal liposarcoma and two surgically treated recurrences, including replacement of the ureter by a fraction of the ileum, there was no option for further surgery. Thus, we considered RFA as the most suitable treatment option. Monopolar RFA was performed in a single session with a 2-cm umbrella-shaped LeVeen probe. During a 27-month follow-up period the patient remained free of tumor.
authors.affiliation: Department of Diagnostic Radiology, University Hospital, RWTH Aachen University, Pauwelsstrasse 30, 52074 Aachen, Germany. keil@rad.rwth-aachen.de
authors.forename: Sebastian
authors.initials: S
authors.lastname: Keil
authors.forename: Philipp
authors.initials: P
authors.lastname: Bruners
authors.forename: Bernhard
authors.initials: B
authors.lastname: Brehmer
authors.forename: Andreas Horst
authors.initials: AH
authors.lastname: Mahnken
mesh_terms: D000368:Aged; D017115:Catheter Ablation / Q000379:methods*; D003131:Combined Modality Therapy; D006801:Humans; D008080:Liposarcoma / Q000532:radiotherapy / Q000601:surgery*; D008297:Male; D009364:Neoplasm Recurrence, Local / Q000601:surgery; D016658:Psoas Muscles / Q000473:pathology*; D015641:Radiography, Interventional; D012186:Retroperitoneal Neoplasms / Q000601:surgery*; D014057:Tomography, X-Ray Computed