title: [Chondroma of the parotid gland. Clinical--histologic--immunohistochemical findings of a rare case].
abstract: A unique extraskeletal chondroma is reported which occupied the entire right parotid gland of a 32-year old man. The midsized tumour was hard and well circumscribed. Its histological pattern was typical of a chondroma with lobules of hyaline cartilage and several areas of calcification. The chondrocytes were positive for S-100 protein and negative for smooth muscle and myoepithelial markers. Epithelial neoplastic elements, as found in pleomorphic adenomas, were not detected in the present case, neither morphologically nor immunohistochemically.
authors.affiliation: Institut für Pathologie, Aristoteles Universität Thessaloniki.
authors.forename: I S
authors.initials: IS
authors.lastname: Kostopoulos
authors.forename: I
authors.initials: I
authors.lastname: Daniilidis
authors.forename: G
authors.initials: G
authors.lastname: Velegrakis
authors.forename: C S
authors.initials: CS
authors.lastname: Papadimitriou
mesh_terms: D000328:Adult; D014408:Biomarkers, Tumor / Q000032:analysis*; D002812:Chondroma / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D006801:Humans; D007124:Immunoenzyme Techniques; D007633:Keratins / Q000032:analysis; D008297:Male; D008562:Membrane Glycoproteins / Q000032:analysis; D018396:Mucin-1; D010307:Parotid Neoplasms / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D009418:S100 Proteins / Q000032:analysis
chemical_list: D014408:Biomarkers, Tumor; D008562:Membrane Glycoproteins; D018396:Mucin-1; D009418:S100 Proteins; D007633:Keratins