Extraosseous sarcoma

The lesion we described is an osteoid producing mitotically active spindle cell soft tissue neoplasm, which has light and ultrastructural features of an osteosarcoma. By immunohistochemistry it marks with p30/32MIC2-directed antibodies but fails to react with antibodies associated with other soft tissue neoplasms. The precise histogenesis of the lesion is unknown, but failure to elicit a periosteal reaction makes the periosteum less likely to be the primary tissue of origin. The failure to demonstrate any radiologic or histologic evidence of involvement of the underlying bone leaves the soft tissue as the most reasonable site of origin, although the parosteal region cannot be completely excluded.

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Small cell osteosarcoma of the soft tissue

Robinson

Pitt

Jaffe

et al. 1995

Skeletal Radiol.

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Extraosseous sarcoma

Abstract: Extraskeletal osteosarcoma is very rare and is difficult to diagnose histologically. We report a case of a 63 year old women who had such a tumour in her thigh.

Cited by 1 publication

References 20 publications

Small cell osteosarcoma of the soft tissue

Small cell osteosarcoma of the soft tissue

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