Case repository| Volume 42, ISSUE 12, P1038.e1-1038.e10, December 2017

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Parosteal Osteosarcoma of the Distal Radius Mimicking an Osteochondroma—A Diagnostic Misadventure

Published:September 14, 2017DOI:
      We present a case of a parosteal osteosarcoma mimicking an osteochondroma with atypical clinical features, radiographic findings, and histological examination. This report serves to exemplify the importance of recognizing the similarities between these 2 entities and other peculiar features that will help to differentiate between sessile osteochondromas and parosteal osteosarcomas, to prevent misdiagnosis.

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        • Kumar V.S.
        • Barwar N.
        • Khan S.A.
        Surface osteosarcomas: diagnosis, treatment and outcome.
        Indian J Orthop. 2014; 48: 255-261
        • Grimer R.J.
        • Carter S.R.
        • Spooner D.
        • Sneath R.S.
        Diagnosing musculoskeletal tumours.
        Sarcoma. 2001; 5: 89-94
        • Kumar R.
        • Moser Jr., R.P.
        • Madewell J.E.
        • Edeiken J.
        Parosteal osteogenic sarcoma arising in cranial bones: clinical and radiologic features in eight patients.
        AJR Am J Roentgenol. 1990; 155: 113-117
        • Kumm D.A.
        • Rutt J.
        • Hackenbroch M.H.
        Parosteal osteosarcoma of the tarsus.
        Arch Orthop Trauma Surg. 1997; 116: 437-439
        • Okada K.
        • Frassica F.J.
        • Sim F.H.
        • Beabout J.W.
        • Bond J.R.
        • Unni K.K.
        Parosteal osteosarcoma: a clinicopathological study.
        J Bone Joint Surg Am. 1994; 76: 366-378
        • Lin J.
        • Yao L.
        • Mirra J.M.
        • Bahk W.J.
        Osteochondromalike parosteal osteosarcoma: a report of six cases of a new entity.
        AJR Am J Roentgenol. 1998; 170: 1571-1577
        • Jelinek J.S.
        • Murphey M.D.
        • Kransdorf M.J.
        • Shmookler B.M.
        • Malawer M.M.
        • Hur R.C.
        Parosteal osteosarcoma: value of MR imaging and CT in the prediction of histologic grade.
        Radiology. 1996; 201: 837-842
        • Ackerman L.V.
        Extra-osseous localized non-neoplastic bone and cartilage formation (so-called myositis ossificans): clinical and pathological confusion with malignant neoplasms.
        J Bone Joint Surg Am. 1958; 40: 279-298
        • Bielack S.
        • Carrle D.
        • Casali P.G.
        • Group EGW
        Osteosarcoma: ESMO clinical recommendations for diagnosis, treatment and follow-up.
        Ann Oncol. 2009; 20: 137-139
        • Mark D.M.
        • James J.C.
        • Mark J.K.
        • Donald J.F.
        • Frances H.G.
        Imaging of osteochondroma: variants and complications with radiologic-pathologic correlation.
        Radiographics. 2000; 20: 1407-1434
        • Park Y.K.
        • Ryu K.N.
        Parosteal osteosarcoma of the scapula.
        J Korean Med Sci. 1999; 14: 586-588
        • Toepfer A.
        • Pohlig F.
        • Muhlhofer H.
        • Lenze F.
        • von Eisenhart-Rothe R.
        • Lenze U.
        A popliteal giant synovial osteochondroma mimicking a parosteal osteosarcoma.
        World J Surg Oncol. 2013; 11: 241
        • Yoshida A.
        • Ushiku T.
        • Motoi T.
        • et al.
        Immunohistochemical analysis of MDM2 and CDK4 distinguishes low-grade osteosarcoma from benign mimics.
        Mod Pathol. 2010; 23: 1279-1288
        • Krishna Swaroop D.S.
        • Bai S.J.
        • Shanthi V.
        • Ramakrishna B.A.
        Osteochondroma-like parosteal osteosarcoma.
        Indian J Pathol Microbiol. 2008; 51: 58-60