title: Osteosarcoma of the maxilla and the maxillary sinus: a case report.
abstract: Osteosarcoma of the jawbones is a rare malignant mesenchymal neoplasm with the tendency for new bone being directly formed by the tumor cells. Clinically, the tumor may be central or peripheral--periosteal--and histologically can be divided into three subtypes: osteoblastic, fibroblastic, and chondroblastic. This report presents a case of a central osteoblastic osteosarcoma of the left maxillary tuberosity and maxillary sinus. Problems related to definitive diagnosis and therapy are described and discussed.
authors.affiliation: Department of Oral Surgery and Stomatology, School of Dental Medicine, University of Berne, Berne, Switzerland.
authors.forename: Christian
authors.initials: C
authors.lastname: Frei
authors.forename: Michael M
authors.initials: MM
authors.lastname: Bornstein
authors.forename: Edouard
authors.initials: E
authors.lastname: Stauffer
authors.forename: Tateyuki
authors.initials: T
authors.lastname: Iizuka
authors.forename: Daniel
authors.initials: D
authors.lastname: Buser
mesh_terms: D006801:Humans; D008297:Male; D008441:Maxillary Neoplasms / Q000473:pathology* / Q000601:surgery; D008444:Maxillary Sinus Neoplasms / Q000473:pathology* / Q000601:surgery; D008875:Middle Aged; D012516:Osteosarcoma / Q000473:pathology* / Q000601:surgery