Extraskeletal osteosarcoma represents approximately 1% of soft tissue sarco mas and approximately 4% of all osteosarcomas. It is therefore much rarer than osteosarcoma arising primarily in bone.1 Skin as a primary sit...Extraskeletal osteosarcoma represents approximately 1% of soft tissue sarco mas and approximately 4% of all osteosarcomas. It is therefore much rarer than osteosarcoma arising primarily in bone.1 Skin as a primary site has seldom been reported.2- 6 This report describes an extraskeletal osteosarcoma of the skin under a previously electrodessicated actinic keratosis.展开更多
文摘Extraskeletal osteosarcoma represents approximately 1% of soft tissue sarco mas and approximately 4% of all osteosarcomas. It is therefore much rarer than osteosarcoma arising primarily in bone.1 Skin as a primary site has seldom been reported.2- 6 This report describes an extraskeletal osteosarcoma of the skin under a previously electrodessicated actinic keratosis.