Periosteal osteoid osteoma is extremely rare. The diagnosis is not always clear. We report a case of periosteal osteoid osteoma arising from the posterior surface of the right distal femur in a 21-year-old woman. After careful evaluation and excisional biopsy, histological examination confirmed the diagnosis of osteoid osteoma, showing the nidus, surrounding osteosclerosis, and catarrhal synovitis. The lesion was treated successfully with excision of the nidus.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3143974 | PMC |
| http://dx.doi.org/10.4081/or.2010.e15 | DOI Listing |
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