6) Clinical features are not characteristic, and for this reason delay in diagnosis and management may be significant. 4) Misdiagnosis has been reported in patients suffering from this malignancy. 5) In such cases, reoperation is often unavoidable in order to achieve wide tumor-free margins in the setting of a previously contaminated surgical “bed.” 5) There have been reports of misdiagnosed SS in the knee, 2 6 7) but none in the context of total knee arthroplasty.
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