title: Case 1. Extraskeletal osteosarcoma.
authors.forename: J S
authors.initials: JS
authors.lastname: Yu
authors.forename: C J
authors.initials: CJ
authors.lastname: Ashman
authors.forename: M
authors.initials: M
authors.lastname: Dardani
mesh_terms: D000008:Abdominal Neoplasms / Q000000981:diagnostic imaging*; D006801:Humans; D008297:Male; D008875:Middle Aged; D012516:Osteosarcoma / Q000000981:diagnostic imaging*; D011859:Radiography; D012983:Soft Tissue Neoplasms / Q000000981:diagnostic imaging*