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  • Title: Prognostic factors and clinical outcomes in synovial sarcoma of the extremities.
    Author: Wisanuyotin T, Radapat K, Sirichativapee W, Paholpak P, Kosuwon W, Sumnanoont C, Jeeravipoolvarn P.
    Journal: Asia Pac J Clin Oncol; 2013 Mar; 9(1):80-5. PubMed ID: 22898085.
    Abstract:
    AIMS: To evaluate the clinical outcomes and identify which prognostic factors influence the clinical outcomes of synovial sarcoma patients at a tertiary university hospital in Thailand. METHODS: Patients with synovial sarcoma of the extremities between 1997 and 2007 were reviewed from the database of the Musculoskeletal Oncology Unit, Srinagarind Hospital, Khon Kaen University, Khon Kaen, Thailand. RESULTS: Of 41 patients, 23 males (56%) and 18 females (44%) with a median age of 39 (range, 1-78 years), 18 (44%) had metastasis at the first diagnosis and 23 (56%) had only a localized tumor. The 5-year overall survival of all the patients was 36%; 64% in patients with localized disease and 0% in patients with metastasis at first diagnosis. In all 23 patients (56%) died of the disease at a median duration of 11 months (range 3-47 months). All patients with metastases died at a median 9 months (range 1-41 months). Metastasis at first diagnosis influenced overall survival for patients with synovial sarcoma (P < 0.001). According to a univariate analysis, the significant adverse factors were biphasic histological subtype and an inadequate surgical margin of the definitive surgery (P < 0.05). CONCLUSION: Synovial sarcoma is still a disease with a poor prognosis. Distant metastasis at initial diagnosis is a significant adverse prognostic factor for overall survival. A biphasic histological subtype and an inadequate surgical margin are significant adverse prognostic factors in localized synovial sarcoma.
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