title: Papillary oncocytic cystadenoma of a palatal minor salivary gland: A case report.
abstract: Papillary cystadenomas of the salivary gland are uncommon, benign, encapsulated or well-circumscribed, multicystic tumors with intracystic papillations. In a large review, papillary cystadenoma constituted 2% of all minor salivary gland tumors. The present study reports an extremely rare case of a papillary cystadenoma arising from the palate that demonstrated oncocytic features. A 60-year-old man was referred by his dentist to the Second Department of Oral and Maxillofacial Surgery at Osaka Dental University Hospital for the diagnostic evaluation of a mass of the left palate. An incisional biopsy was performed and the microscopic findings were interpreted as consistent with a papillary oncocytic cystadenoma. Therefore, the lesion was excised under general anesthesia. The post-operative course was uneventful and no recurrence had developed 5 years subsequent to surgery.
authors.affiliation: Second Department of Oral and Maxillofacial Surgery, Osaka Dental University, Osaka, Osaka 540-0008, Japan.
authors.forename: Michiko
authors.initials: M
authors.lastname: Goto
authors.affiliation: Second Department of Oral and Maxillofacial Surgery, Osaka Dental University, Osaka, Osaka 540-0008, Japan.
authors.forename: Yuichi
authors.initials: Y
authors.lastname: Ohnishi
authors.affiliation: Second Department of Oral and Maxillofacial Surgery, Osaka Dental University, Osaka, Osaka 540-0008, Japan.
authors.forename: Yuichi
authors.initials: Y
authors.lastname: Shoju
authors.affiliation: Department of Oral Pathology, Osaka Dental University, Osaka, Osaka 540-0008, Japan.
authors.forename: Masahiro
authors.initials: M
authors.lastname: Wato
authors.affiliation: Second Department of Oral and Maxillofacial Surgery, Osaka Dental University, Osaka, Osaka 540-0008, Japan.
authors.forename: Kenji
authors.initials: K
authors.lastname: Kakudo
keywords: cystadenomas; oncocytic feature; salivary gland