title: Primary cutaneous osteosarcoma.
abstract: A 78-year-old man had a 1-cm cutaneous nodule on his shoulder; subsequent excisional biopsy showed osteosarcoma. There was no connection to deeper structures, and no primary bone lesion was found. The tumor recurred at the same site 9 months after diagnosis and was reexcised. We believe this to be the first well-illustrated case of primary cutaneous osteosarcoma, which should now be included on the list of sarcomas that may occur in the skin.
authors.affiliation: Burdette Tomlin Memorial Hospital, Department of Pathology, Cape May Courthouse, New Jersey.
authors.forename: J W
authors.initials: JW
authors.lastname: Kobos
authors.forename: G H
authors.initials: GH
authors.lastname: Yu
authors.forename: S
authors.initials: S
authors.lastname: Varadarajan
authors.forename: J S
authors.initials: JS
authors.lastname: Brooks
mesh_terms: D000368:Aged; D002467:Cell Nucleus / Q000648:ultrastructure; D003593:Cytoplasm / Q000648:ultrastructure; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008938:Mitosis; D009364:Neoplasm Recurrence, Local / Q000473:pathology; D012516:Osteosarcoma / Q000473:pathology*; D012782:Shoulder; D012878:Skin Neoplasms / Q000473:pathology*