title: A case of extraskeletal osteogenic sarcoma in the neck.
abstract: A patient with an extraskeletal osteogenic sarcoma in the neck is described. At the site of this extremely rare tumor a liposarcoma had been removed 7 and 14 years previously. The patient had never received radiotherapy. The presence and type of calcification and ossification serve to distinguish between the various conditions of the differential diagnosis.
authors.forename: F H
authors.initials: FH
authors.lastname: Binkhuysen
authors.forename: C J
authors.initials: CJ
authors.lastname: Vellenga
mesh_terms: D000368:Aged; D005260:Female; D006258:Head and Neck Neoplasms / Q000000981:diagnostic imaging* / Q000473:pathology; D006801:Humans; D008080:Liposarcoma / Q000000981:diagnostic imaging / Q000473:pathology; D009364:Neoplasm Recurrence, Local / Q000000981:diagnostic imaging; D012516:Osteosarcoma / Q000000981:diagnostic imaging* / Q000473:pathology; D014057:Tomography, X-Ray Computed