title: A hybrid carcinoma of epithelial-myoepithelial carcinoma and adenoid cystic carcinoma in maxillary sinus.
abstract: Hybrid carcinoma of the salivary gland is a very rare entity that has been described only in the parotid and palate. The occurrence of a hybrid carcinoma of maxillary sinus has not been reported. The diagnosis of hybrid carcinoma is important particularly when the components of tumor have different biologic behaviors. Diagnosis and treatment require a high index of suspicion, especially when the tumor is an epithelial-myoepithelial carcinoma, pathological effort to look for a more aggressive accompanying tumor, and proper oncologic treatment. We describe a case of 26-yr-old woman with a hybrid carcinoma composed of epithelial-myoepithelial carcinoma with an adenoid cystic carcinoma component (cribriform pattern) in the right maxillary sinus with a brief review of the relevant literature.
authors.affiliation: Department of Otolaryngology-Head and Neck Surgery, Anam Hospital, Korea University College of Medicine, Seoul, Korea.
authors.forename: Jeong-Su
authors.initials: JS
authors.lastname: Woo
authors.forename: Soon-Young
authors.initials: SY
authors.lastname: Kwon
authors.forename: Kwang-Yoon
authors.initials: KY
authors.lastname: Jung
authors.forename: Insun
authors.initials: I
authors.lastname: Kim
mesh_terms: D000328:Adult; D002277:Carcinoma / Q000175:diagnosis* / Q000473:pathology; D003528:Carcinoma, Adenoid Cystic / Q000175:diagnosis* / Q000473:pathology; D005260:Female; D006801:Humans; D007150:Immunohistochemistry; D008444:Maxillary Sinus Neoplasms / Q000175:diagnosis* / Q000473:pathology; D009362:Neoplasm Metastasis; D009375:Neoplasms, Glandular and Epithelial / Q000175:diagnosis* / Q000473:pathology; D009378:Neoplasms, Multiple Primary / Q000175:diagnosis* / Q000473:pathology; D011379:Prognosis; D012008:Recurrence; D016896:Treatment Outcome