title: Synchronous unilateral parotid gland neoplasms of three different histological types.
abstract: A 67-year-old male with three synchronous tumors in the unilateral parotid gland is reported. Postoperative histological examinations confirmed the presence of three synchronous primary tumors, specifically pleomorphic adenoma, Warthin's tumor and salivary duct carcinoma, in the right parotid gland. To our knowledge, this is the first case report describing three different histological types in the unilateral parotid gland.
authors.affiliation: Department of Otolaryngology, Doctoral Program in Functional and Regulatory Medical Sciences, Graduate School of Comprehensive Human Sciences, University of Tsukuba, Tsukuba, 1-1-1 Tennodai, Tsukuba 305-8575, Japan.
authors.forename: Shuho
authors.initials: S
authors.lastname: Tanaka
authors.forename: Keiji
authors.initials: K
authors.lastname: Tabuchi
authors.forename: Keiko
authors.initials: K
authors.lastname: Oikawa
authors.forename: Rika
authors.initials: R
authors.lastname: Kohanawa
authors.forename: Hideki
authors.initials: H
authors.lastname: Okubo
authors.forename: Dai
authors.initials: D
authors.lastname: Ikebe
authors.forename: Masayuki
authors.initials: M
authors.lastname: Noguchi
authors.forename: Akira
authors.initials: A
authors.lastname: Hara
mesh_terms: D000235:Adenolymphoma / Q000473:pathology*; D008949:Adenoma, Pleomorphic / Q000473:pathology*; D000368:Aged; D002277:Carcinoma / Q000473:pathology*; D006801:Humans; D008297:Male; D009378:Neoplasms, Multiple Primary / Q000473:pathology*; D010306:Parotid Gland / Q000473:pathology; D010307:Parotid Neoplasms / Q000473:pathology*; D018987:Salivary Ducts / Q000473:pathology*