• Langenbecks Arch Surg · Mar 2009

    MFH revisited: outcome after surgical treatment of undifferentiated pleomorphic or not otherwise specified (NOS) sarcomas of the extremities -- an analysis of 140 patients.

    • Marcus Lehnhardt, Adrien Daigeler, Heinz H Homann, Vanessa Schwaiberger, Ole Goertz, Cornelius Kuhnen, and Hans U Steinau.
    • Department of Plastic Surgery, Burn Center, Handsurgery, Sarcoma Reference Center, BG University Hospital Bergmannsheil, Ruhr University Bochum, Bochum, Germany. marcus.lehnhardt@ruhr-uni-bochum.de
    • Langenbecks Arch Surg. 2009 Mar 1;394(2):313-20.

    BackgroundUndifferentiated pleomorphic sarcoma/NOS (not otherwise specified; former pleomorphic and storiform MFH) of the extremities is a common malignant soft tissue tumor in adults. The objective of this study is to determine prognostic factors for the outcome after surgical treatment with respect to the recent developments in classification.MethodsFrom 1996 to 2004, 140 undifferentiated pleomorphic sarcomas/NOS were identified out of 1,200 soft tissue sarcomas of the extremities that were treated at our institution and recorded in a prospective database. Overall survival (OS) and isolated local recurrence (ILR) were determined by Kaplan-Meier analysis. All tumors were retrospectively analyzed regarding prognostic factors of the disease, including patient's background (primary or recurrent), histological grade (G2/G3), adjuvant chemotherapy and radiotherapy, size (T1-2) and depth of the tumor, and surgical margins (R0, R1, R2).ResultsIn 123 patients, a wide resection was performed (limb-sparing surgery). In nine patients, an amputation was necessary. The overall 5-year survival rate was 72% (median follow up: 52 months). There was a significant difference between the group presenting with primary tumors (5-year survival: 84%, p < 0.05) and recurrent tumors (5-year survival: 62%, p < 0.05). Isolated local recurrence occurred in 36 patients.ConclusionsIn terms of OS and ILR, primary or recurrence, negative surgical margins, size and grading had a highly significant influence, whereas the site of surgery and adjuvant chemotherapy, adjuvant radiation and tumor depth did not. Prognosis for patients with undifferentiated pleomorphic sarcoma of the extremities depends predominantly on adequate wide resection of the primary tumor.

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