Abstract.
Fibro-osseous pseudotumor of the digits is a rare benign lesion characterized histopathologically by a fibroblastic proliferation with foci of osseous differentiation. We report a case of fibro-osseous pseudotumor of the digits with a rapidly growing lesion in a 30-year-old woman. Because of its rapid growth and aggressive histopathological appearance, this lesion can be mistaken for a malignant neoplasm such as extraskeletal or parosteal osteosarcoma, despite its benign clinical behavior. For a soft tissue mass in the digit with a clinicopathological feature of pseudomalignancy, the clini-cian should consider fibro-osseous pseudotumor of the digits as a possible diagnosis, thereby avoiding inappropriately aggressive surgery.
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Received: September 20, 2001 / Accepted: December 13, 2001
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Nishio, J., Iwasaki, H., Soejima, O. et al. Rapidly growing fibro-osseous pseudotumor of the digits mimicking extraskeletal osteosarcoma. J Orthop Sci 7, 410–413 (2002). https://doi.org/10.1007/s007760200070
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DOI: https://doi.org/10.1007/s007760200070