1991•Orthopedics & TraumatologyOpen access
Atypical Cases of Osteosarcoma.
Setsuro Komiya, Hiroshi Kanae, Kazuhito Minamitani, Masanori Nakashima, Koji Hiraoka, Akio Inoue
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Abstract
Cases of unusual osteosarcoma comprising parosteal osteosarcoma, intraosseous well differentiated osteosarcoma, postradiation osteosarcoma, epithelioid osteosarcoma, and MFH-like osteosarcoma were reported. They were apparently differed from conventional osteosarcoma in the point of biologic activity and prognosis. Osteosarcoma is, therefore, considered as a heterogeneic tumor. It is important to make an exact diagnosis and to make an appropriate treatment depending on the diagnosis.
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