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Extraskeletal osteosarcoma arising in myositis ossificans: a case report and review of the literature

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Abstract

We report a case of a 23-year-old female with pain and fullness in the right popliteal fossa. An MRI scan demonstrated an ossified enhancing soft tissue mass. Evaluation of the resected specimen showed a high-grade extraskeletal osteosarcoma juxtaposed to the three zones of myositis ossificans. At 1-year follow-up the patient is alive and disease free. A review of the literature purporting to document such an association failed to demonstrate a single case in which an osteosarcoma and MO with its zonal architecture co-existed.

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Authors and Affiliations

  1. Department of Pathology, Hofstra Northwell School of Medicine, 6 Ohio Drive, New Hyde Park, Hempstead, NY, 11040, USA

    Deepika Savant & Leonard Kahn

  2. Department of Orthopaedics, Hofstra Northwell School of Medicine, Hempstead, NY, USA

    Shachar Kenan & Samuel Kenan

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  1. Deepika Savant
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  2. Shachar Kenan
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  3. Samuel Kenan
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  4. Leonard Kahn
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Correspondence to Deepika Savant.

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Savant, D., Kenan, S., Kenan, S. et al. Extraskeletal osteosarcoma arising in myositis ossificans: a case report and review of the literature. Skeletal Radiol 46, 1155–1161 (2017). https://doi.org/10.1007/s00256-017-2674-x

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  • DOI: https://doi.org/10.1007/s00256-017-2674-x

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