title: Congenital peripheral developing odontoma accompanied by congenital teratomatous fibroma in a 9-month-old boy: a case report.
abstract: Peripheral odontoma is rare, and only two cases of congenital peripheral odontoma have been reported. Congenital oral fibroma is also rare. We describe a unique case of congenital peripheral developing odontoma accompanied by congenital teratomatous fibroma in an infant. Both tumors were difficult to detect on radiography. Two small masses were seen in the median anterior portion of the palatal mucosa of a 9-month-old boy. The masses had been present since birth and were surgically removed at age 28 months, when one of the masses had grown to a diameter of 8 mm. Histopathologic examination showed a fibrous lesion and a tooth germ-like rounded lesion composed of dental papilla, enamel organ, dentin, and cementum. Although congenital odontoma is rare, it should be considered when selecting appropriate treatment, as early radiographic detection is difficult.
authors.affiliation: Division of Anatomical and Cellular Pathology, Department of Pathology, Iwate Medical University, Shiwa-gun, Iwate, Japan. toshi_m@sea.plala.or.jp
authors.forename: Toshinari
authors.initials: T
authors.lastname: Mikami
authors.forename: Masaatsu
authors.initials: M
authors.lastname: Yagi
authors.forename: Harumi
authors.initials: H
authors.lastname: Mizuki
authors.forename: Yasunori
authors.initials: Y
authors.lastname: Takeda
mesh_terms: D003739:Dental Cementum / Q000473:pathology; D003771:Dental Papilla / Q000473:pathology; D003804:Dentin / Q000473:pathology; D004658:Enamel Organ / Q000473:pathology; D005350:Fibroma / Q000151:congenital* / Q000473:pathology; D005500:Follow-Up Studies; D006801:Humans; D007223:Infant; D008297:Male; D009378:Neoplasms, Multiple Primary / Q000151:congenital* / Q000473:pathology; D009810:Odontoma / Q000151:congenital* / Q000473:pathology; D010157:Palatal Neoplasms / Q000151:congenital* / Q000473:pathology; D013724:Teratoma / Q000151:congenital / Q000473:pathology