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Ewing sarcoma of Hoffa fat pad in the knee: a case report and review of the literature on primary intraarticular sarcomas and Hoffa fat pad masses

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Abstract

Primary intraarticular sarcomas are rare. We describe a unique case of intraarticular Ewing sarcoma arising in Hoffa fat pad of knee in a woman. The patient was treated successfully with chemotherapy and left knee arthroplasty; however, the tumor recurred after 3 years.

We review the literature on primary intraarticular sarcomas and Hoffa fat pad masses in the knee.

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Author notes

  1. Laura M. Warmke

    Present address: Indiana University, IU Health Pathology Laboratory, Indianapolis, IN, 46202, USA

Authors and Affiliations

  1. Department of Diagnostic Imaging, The University of Texas M.D. Anderson Cancer Center, Houston, TX, USA

    Rajendra Kumar

  2. Department of Pathology, The University of Texas M.D. Anderson Cancer Center, Houston, TX, 77030, USA

    Laura M. Warmke & Wei-Li Wong

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  1. Rajendra Kumar
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Correspondence to Rajendra Kumar.

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Kumar, R., Warmke, L.M. & Wong, WL. Ewing sarcoma of Hoffa fat pad in the knee: a case report and review of the literature on primary intraarticular sarcomas and Hoffa fat pad masses. Skeletal Radiol 52, 1415–1420 (2023). https://doi.org/10.1007/s00256-022-04239-7

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