Distal extremities soft tissue sarcomas: Are they so different from other limb localizations?
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Journal of surgical oncology. 2019-03, vol. 119, n° 4, p. 479-488
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BACKGROUND AND OBJECTIVES: Soft tissue sarcoma localization in distal extremities (DESTS) of the limbs (hand/fingers, and foot/toes) is unusual. The literature is scarce about their behavior and this study was designed to ...Leer más >
BACKGROUND AND OBJECTIVES: Soft tissue sarcoma localization in distal extremities (DESTS) of the limbs (hand/fingers, and foot/toes) is unusual. The literature is scarce about their behavior and this study was designed to assess their epidemiological characteristics, outcomes, and prognosis compared to other limb localizations (OLSTS). METHODS: From 1980 to 2010, adult DESTS and OLSTS in 22 centers were included. Demographics, tumor type, treatment modalities, and latest follow-up status were collected. Primary endpoints were overall survival and local/metastatic recurrence incidences. RESULTS: Two hundred five DESTS and 3001 OLSTS were included. The patients were younger, with more female and smaller tumors in DESTS. There were more clear cell/epithelioid sarcomas, synovial sarcomas, and myxoid liposarcomas vs more dedifferentiated liposarcomas in OLSTS. DESTS tumors were less irradiated and more often amputated (24.3% vs 3.4%). The five-year survival rate was 78.2% compared to 68.6% in OLSTS and after multivariate analysis, STS localization did not impact survival or local/metastatic recurrence. CONCLUSION: Though rare and smaller than other limb localizations, DESTS are to be considered as aggressive. Despite a higher amputation rate, the prognosis remains the same as in OLSTS. Limb sparing vs amputation should be carefully assessed in DESTS, especially if grade 3 or of a poor prognosis histological subtype.< Leer menos
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