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KMID : 0613319990050030178
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Journal of the Korean Bone and Joint Tumor Soceity
1999 Volume.5 No. 3 p.178 ~ p.182
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Bizarre Parosteal Osteochondromatous Proliferation of the Femur (Nora’s Lesion) -A Case Report-
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Shin Bong-Kyung
Cho Hyun-Duk
Yeom Bom-Woo
Choi Jong-Sang
Kim Chul-Hwan
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Abstract
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We report a case of bizarre parosteal osteochondromatous proliferation of the right femur in an 18-year-old man. Roentgenograms showed a calcific mass attached to the underlying cortex with a board base. Histologically, the lesion showed hypercellular cartilaginous tissue with maturation into trabecular bone, which contained spindle cells and lymphocytes in the intertrabecular spaces. Bizarre parosteal osteochondromatous proliferations are a form of heterotopic ossification and should not be mistaken for osteosarcoma or chondrosarcoma.
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KEYWORD
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Bizarre parosteal osteochondromatous proliferation, Femur
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