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  • Title: Soft tissue tumors of the lower leg, foot and ankle: A cross-sectional observational study analysing 376 cases.
    Author: Jenkins JM, Gupta S, Mahendra A, Del Balso C, Park S, Daniels T, Halai M.
    Journal: J Foot Ankle Surg; 2024 Oct 05; ():. PubMed ID: 39369951.
    Abstract:
    Fewer than 5 % of soft tissue sarcomas arise in the foot and ankle. It can be difficult to distinguish between benign and malignant lesions which leads to a delay in diagnosis. Initial inappropriate procedures limit options for limb salvage and increasing rates of local recurrence. Our aim is to improve understanding of the presentation and management of these rare tumors to reduce delays in diagnosis and decrease the occurrence of inappropriate or unwarranted procedures. A prospectively maintained database of 376 new referrals to the West of Scotland regional musculoskeletal oncology service for soft tissue lesions of the foot, ankle, and lower leg over a 10-year period was analysed retrospectively. An assessment was made of patient demographics, presentation, anatomical location, diagnosis, classification, management, and outcomes for all patients. Of all new referrals, 53.5 % were diagnosed with primary benign soft tissue tumors and 16 % with primary malignant soft tissue tumors. The most common primary benign tumor in our population was schwannoma (15.9 %) and primary malignant tumor was undifferentiated sarcoma (26.7 %). In the foot alone, soft tissue sarcomas most commonly occurred in the forefoot (44.4 %). The most common presenting complaints were rest pain and focal swelling. Symptoms were present for on average 7 months prior to referral. Death from disease in sarcomas was 41.7 % over a 10 year follow up period, higher than other body areas. Soft tissue sarcomas in the foot and ankle remain a diagnostic challenge. Local biopsies should only be performed following discussion with an oncology surgeon. We have provided a management protocol in order to reduce the number of inappropriate procedures performed in this group and expedite referral to specialist centres, optimising clinical outcomes and reducing the cost of litigation to healthcare services.
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