关于复发性阿弗它溃疡的病因,一直存在着争论。由于它与自塞氏综合症的口腔溃疡相似,所以在疾病的早期无法鉴别,甚至用组织病理检查也难以鉴别。作者通过电子显,微镜研究,认为复发性阿弗它溃疡早期可以通过口腔上皮的电子显微镜检查与自塞氏综合症鉴别。材料和方法: 活检标本取自12例复发性阿弗它溃疡患者和4例白塞年综合症患者的溃疡前期的颊粘膜和牙龈粘膜(大多在口腔粘膜上发现 There has been controversy over the etiology of recurrent aphthous ulcers. Because it is similar to mouth ulcers from Seychelles syndrome, it can not be identified early in the disease, and even histopathological examination is difficult to identify. By electron microscopy, micromirror study, the author believes that early recurrent aphthous ulcer can be electron microscopic examination of the oral epithelium and identification of self-Syndrome. MATERIALS AND METHODS: Biopsy specimens were obtained from the buccal mucosa and gingival mucosa of the pre-ulcer in 12 patients with recurrent aphthous ulcer and in 4 patients with Behcet's syndrome (mostly found on the oral mucosa