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Timothy M. Pawlik, MD, MPH; Jean-Nicolas Vauthey, MD; Eddie K. Abdalla, MD; Raphael E. Pollock, MD, PhD; Lee M. Ellis, MD; Steven A. Curley, MD

Arch Surg. 2006;141:537-544.

Hypothesis  A subset of patients with sarcoma liver metastasis may benefit from hepatic resection and/or ablation.

Design  Retrospective review of prospectively collected cancer center database records.

Patients and Methods  Sixty-six patients who underwent hepatic resection and/or open radiofrequency ablation of metastatic sarcoma between July 1, 1996, and April 30, 2005, were identified from the database. Clinicopathologic, operative, recurrence, and long-term survival data were analyzed.

Results  The primary sarcoma site was the abdomen or retroperitoneum (n = 22), stomach (n = 18), small or large bowel (n = 17), pelvis (n = 4), uterus (n = 3), or other (n = 2). Tumor pathologic types included gastrointestinal stromal tumor (n = 36), leiomyosarcoma (n = 18), and sarcoma not otherwise classified (n = 12). Thirty-five patients underwent resection, 18 underwent resection plus radiofrequency ablation, and 13 underwent radiofrequency ablation only. With a median follow-up of 35.8 months, 44 patients (66.7%) had recurrence (intrahepatic only, n = 16; extrahepatic only, n = 11; both, n = 17). Treatment with radiofrequency ablation (either alone or combined with resection) (P = .002) and lack of adjuvant chemotherapy (P = .01) predicted shorter disease-free survival. The 1-, 3-, and 5-year overall survival rates were 91.2%, 65.4%, and 27.1%, respectively. Patients with gastrointestinal stromal tumor who were treated with adjuvant imatinib mesylate had the longest median survival (not reached) (P = .003).

Conclusions  Long-term survival can be achieved following surgical treatment of sarcoma liver metastasis, especially in patients with gastrointestinal stromal tumor. Patients with sarcoma liver metastasis should be evaluated by a multidisciplinary team, as recurrence is common and adjuvant therapy may prolong survival.

Author Affiliations: Department of Surgical Oncology, The University of Texas M. D. Anderson Cancer Center, Houston.

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