title: CT and MR imaging findings of palatal tumors.
abstract: Palatal tumors commonly arise from the minor salivary glands, and benign tumors account for approximately half of all minor salivary gland tumors. Minor salivary gland tumors have an affinity for the posterior hard palate and soft palate and virtually never arise in the midline, probably because of the distribution of palatal salivary glands. The majority of benign salivary gland tumors of the palate are pleomorphic adenomas, while the most common malignant salivary gland tumor is adenoid cystic carcinoma, followed by mucoepidermoid carcinoma, adenocarcinoma, and polymorphous low-grade adenocarcinoma. Epithelial tumors frequently arise from the soft palate. The majority of benign epithelial tumors of the palate are papillomas, while most malignant epithelial tumors are squamous cell carcinomas. Various types of mesenchymal tumors, including fibromas, lipomas, schwannomas, neurofibromas, hemangiomas, and lymphangiomas, also involve the palate. This article describes the CT and MR findings of benign and malignant palatal tumors.
authors.affiliation: Department of Radiology, Gifu University School of Medicine, 1-1 Yanagido, Gifu 501-1194, Japan. Electronic address: hkato@gifu-u.ac.jp.
authors.forename: Hiroki
authors.initials: H
authors.lastname: Kato
authors.affiliation: Department of Radiology, Gifu University School of Medicine, 1-1 Yanagido, Gifu 501-1194, Japan; High-level Imaging Diagnosis Center, Gifu University Hospital, 1-1 Yanagido, Gifu 501-1194, Japan. Electronic address: masa_gif@yahoo.co.jp.
authors.forename: Masayuki
authors.initials: M
authors.lastname: Kanematsu
authors.affiliation: Department of Oral and Maxillofacial Sciences, Gifu University School of Medicine, Gifu, Japan. Electronic address: makitah@gifu-u.ac.jp.
authors.forename: Hiroki
authors.initials: H
authors.lastname: Makita
authors.affiliation: Department of Oral and Maxillofacial Sciences, Gifu University School of Medicine, Gifu, Japan. Electronic address: keizo@gifu-u.ac.jp.
authors.forename: Keizo
authors.initials: K
authors.lastname: Kato
authors.affiliation: Department of Oral and Maxillofacial Sciences, Gifu University School of Medicine, Gifu, Japan. Electronic address: hatakeya@gifu-u.ac.jp.
authors.forename: Daijiro
authors.initials: D
authors.lastname: Hatakeyama
authors.affiliation: Department of Oral and Maxillofacial Sciences, Gifu University School of Medicine, Gifu, Japan. Electronic address: shibat@gifu-u.ac.jp.
authors.forename: Toshiyuki
authors.initials: T
authors.lastname: Shibata
authors.affiliation: Department of Otolaryngology, Gifu University School of Medicine, Gifu, Japan. Electronic address: kmizuta@gifu-u.ac.jp.
authors.forename: Keisuke
authors.initials: K
authors.lastname: Mizuta
authors.affiliation: Department of Otolaryngology, Gifu University School of Medicine, Gifu, Japan. Electronic address: aoki@gifu-u.ac.jp.
authors.forename: Mitsuhiro
authors.initials: M
authors.lastname: Aoki
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D006801:Humans; D007089:Image Enhancement / Q000379:methods*; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008297:Male; D008875:Middle Aged; D010157:Palatal Neoplasms / Q000175:diagnosis*; D056888:Patient Positioning / Q000379:methods*; D014057:Tomography, X-Ray Computed / Q000379:methods*
keywords: CT; Hard palate; MRI; Palate; Soft palate; Tumor