title: Ossifying Parotid Carcinoma ex Pleomorphic Adenoma.
abstract: We present a unique case of an extensively ossified carcinoma ex pleomorphic adenoma (CXPA) in a 76-year-old man with a five-year history of a slowly growing parotid mass. Fine-needle aspiration of the mass was nondiagnostic. A computed tomography (CT) scan of the lesion revealed a well-circumscribed mass with peripheral calcification. Initial pathological analysis suggested a benign parotid mass, but rigorous decalcification revealed noninvasive CXPA. The patient underwent complete resection of the mass and remained disease-free nine months later. Extensive ossification of a seemingly benign parotid mass may mask areas of carcinoma that may progress if left untreated.
authors.affiliation: The Warren Alpert Medical School of Brown University, Providence, RI 02912, USA.
authors.forename: Suresh
authors.initials: S
authors.lastname: Mohan
authors.affiliation: Department of Otology and Laryngology, Harvard Medical School, Boston, MA 02115, USA ; Department of Otolaryngology, Massachusetts Eye and Ear Infirmary, Boston, MA 02114, USA.
authors.forename: Sidharth V
authors.initials: SV
authors.lastname: Puram
authors.affiliation: Department of Otology and Laryngology, Harvard Medical School, Boston, MA 02115, USA ; Department of Otolaryngology, Massachusetts Eye and Ear Infirmary, Boston, MA 02114, USA.
authors.forename: Bharat
authors.initials: B
authors.lastname: Yarlagadda
authors.affiliation: Department of Pathology, Massachusetts General Hospital, Boston, MA 02114, USA.
authors.forename: Vania
authors.initials: V
authors.lastname: Nosé
authors.affiliation: Department of Otology and Laryngology, Harvard Medical School, Boston, MA 02115, USA ; Department of Otolaryngology, Massachusetts Eye and Ear Infirmary, Boston, MA 02114, USA.
authors.forename: Daniel G
authors.initials: DG
authors.lastname: Deschler