title: [Problems in diagnosis and therapy of carcinoma in stroma-abundant pleomorphic adenoma of the parotid gland].
abstract: The case is reported of a 27-year-old patient who developed multiple recurrences of a carcinoma arising from richly stromal pleomorphic adenoma of the parotid gland over 13 years. Originally the tumor was classified as a benign pleomorphic adenoma because there were no cytological characteristics of malignancy. Later on the diagnosis had to be modified to that of a carcinoma arising from a pleomorphic adenoma because of the infiltrating growth pattern of the tumor. A multicentric local recurrence and metastases on the left side of the neck supported the correct diagnosis. This case demonstrates that, beside the classic cytological criteria of malignancy invasion and penetration of the capsule can be decisive for the diagnosis of malign transformed pleomorphic adenoma. Treatment and prognosis of salivary gland tumors assume a clear determination of their diguity. The unusual course in this case of a pleomorphic adenoma originally diagnosed as benign demonstrates the importance of regular follow-up.
authors.affiliation: Klinik für Mund-, Kiefer- und Gesichtschirurgie, Plastische Operationen, Ruhr-Universität Bochum.
authors.forename: S
authors.initials: S
authors.lastname: Stojadinovic
authors.forename: S
authors.initials: S
authors.lastname: Reinert
authors.forename: S
authors.initials: S
authors.lastname: Philippou
mesh_terms: D008949:Adenoma, Pleomorphic / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D000293:Adolescent; D000328:Adult; D002471:Cell Transformation, Neoplastic / Q000473:pathology; D003952:Diagnostic Imaging; D005500:Follow-Up Studies; D006801:Humans; D008207:Lymphatic Metastasis; D008297:Male; D037981:Neck Dissection; D009361:Neoplasm Invasiveness; D009364:Neoplasm Recurrence, Local / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D010306:Parotid Gland / Q000473:pathology / Q000601:surgery; D010307:Parotid Neoplasms / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery
vernacular_title: Problematik der Diagnostik und Therapie des Karzinoms im stromareichen pleomorphen Adenom der Glandula parotis.