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The Korean Journal of Pathology 1993;27(3): 279-282.
Extraskeletal Osteosarcoma of the Sole: A case report.
Ki Ouk Min, Mi Kyung Jee, Seok Jin Kang, Byoung Kee Kim, Sun Moo Kim
Department of Clinical Pathology, Catholic University Medical College, Seoul, Korea.
Compared with osteosarcoma of bone, primary osteosarcoma of the soft tissue is very rare. Extraskeletal osteosarcoma is also a highly malignant pleomorphic sarcoma composed of cells exhibiting primarily osteoblastic, and to a lesser extent, chondroblastic differentiation. A case of extraskeletal osteosarcoma in the right sole is presented in a 67 year old male. The patient had noticed a progressively enlarging soft tissue mass, during about 14 months. This sarcoma was located in the soft tissues without attachment to the skeleton, as determined by examination of the X-Ray findings. The mass of right plantar portion was simply excised and pathologically confirmed to be an extraskeletal osteosarcoma. The clinical and pathological features of this sarcoma are described, and brief review of the literature is made.
Key Words: Extraskeletal; Osteosarcoma