Mikami Toshinari, Yagi Masaatsu, Mizuki Harumi, Takeda Yasunori
Division of Anatomical and Cellular Pathology, Department of Pathology, Iwate Medical University, Shiwa-gun, Iwate, Japan.
J Oral Sci. 2013 Mar;55(1):89-91. doi: 10.2334/josnusd.55.89.
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.
外周性牙瘤较为罕见，仅报道过两例先天性外周性牙瘤。先天性口腔纤维瘤也很罕见。我们描述了一例独特的病例，一名婴儿患有先天性外周性发育性牙瘤并伴有先天性畸胎瘤样纤维瘤。两种肿瘤在影像学上都难以检测到。在一名9个月大男孩的腭黏膜正中前部可见两个小肿物。这些肿物自出生时就存在，在28个月大时进行了手术切除，此时其中一个肿物已长到直径8毫米。组织病理学检查显示为纤维性病变以及一个类似牙胚的圆形病变，由牙乳头、成釉器、牙本质和牙骨质组成。尽管先天性牙瘤罕见，但在选择合适治疗方法时应予以考虑，因为早期影像学检测困难。
