title: Extraskeletal osteosarcoma of the diaphragm presenting as a chest mass.
abstract: Extraskeletal osteosarcoma is a rare malignancy that has not been previously reported to arise from the diaphragm. We describe the case of a 47-year-old woman who had a large thoracic mass found at operation to be an extraskeletal osteosarcoma arising from the diaphragm. The tumor was completely resected en bloc with a margin of surrounding diaphragm, which necessitated a diaphragmatic reconstruction. The literature concerning this rare tumor is reviewed.
authors.affiliation: Division of Cardiothoracic Surgery, Emory University School of Medicine, Atlanta, Georgia 30322, USA.
authors.forename: Howard K
authors.initials: HK
authors.lastname: Song
authors.forename: T Mark
authors.initials: TM
authors.lastname: Leibold
authors.forename: Anthony A
authors.initials: AA
authors.lastname: Gal
authors.forename: Joseph I
authors.initials: JI
authors.lastname: Miller
mesh_terms: D003964:Diaphragm; D005260:Female; D006801:Humans; D008875:Middle Aged; D019042:Muscle Neoplasms / Q000000981:diagnostic imaging*; D012516:Osteosarcoma / Q000000981:diagnostic imaging*; D011859:Radiography