title: Primary osteosarcoma of the parotid gland.
abstract: Four cases of primary osteosarcoma of the parotid gland, where these tumors rarely occur, are presented. This neoplasm may arise after radiation therapy, but the majority arise de novo. As a group, extraosseous osteogenic sarcomas are aggressive and lethal. Patients with these tumors have an average 5-year survival rate of 15.6%. Of the four patients reported on two died within 6 months to 3 years, one has lung metastases, and one has been lost to follow-up.
authors.affiliation: Department of Pathology and Radiology, The University of Texas Health Science Center, Houston.
authors.forename: P G
authors.initials: PG
authors.lastname: Stimson
authors.forename: A
authors.initials: A
authors.lastname: Valenzuela-Espinoza
authors.forename: M E
authors.initials: ME
authors.lastname: Tortoledo
authors.forename: M A
authors.initials: MA
authors.lastname: Luna
authors.forename: N G
authors.initials: NG
authors.lastname: Ordonez
mesh_terms: D000368:Aged; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012516:Osteosarcoma / Q000473:pathology*; D010307:Parotid Neoplasms / Q000473:pathology*