title: [Tumor of the Parotid Gland].
abstract: Salivary gland tumors are a rare, histologically heterogeneous group of tumors which constitute approximately 4–6 % of all head and neck neoplasms. In 2/3 of cases they are benign, especially in the parotid gland. We report about a rare tumor of the parotid gland presenting as an extraskeletal chondroma. Histologically there were multiple S 100 protein-positive nests of chondrocytes. The externally completed cytology suspected a pleomorphic adenoma, nevertheless, the final histopathological findings showed another tumor entity.
authors.affiliation: 1 HNO-Universitätsklinik, Basel.
authors.forename: Teresa
authors.initials: T
authors.lastname: Pötzl
authors.affiliation: 2 Pathologie, Kantonsspital Aarau.
authors.forename: Sabine
authors.initials: S
authors.lastname: Iselin
authors.affiliation: 1 HNO-Universitätsklinik, Basel.
authors.forename: Alexander
authors.initials: A
authors.lastname: Husner
mesh_terms: D008949:Adenoma, Pleomorphic / Q000175:diagnosis / Q000473:pathology; D014408:Biomarkers, Tumor / Q000032:analysis; D044963:Biopsy, Fine-Needle; D002812:Chondroma / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging; D008875:Middle Aged; D010307:Parotid Neoplasms / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D009418:S100 Proteins / Q000032:analysis; D014463:Ultrasonography
chemical_list: D014408:Biomarkers, Tumor; D009418:S100 Proteins
keywords: Extraskelettales Chondrom; Glandula parotis; S 100 protein; S-100-Protein; extraskeletal chondroma; parotid gland