耳硬化症在白种人中极为多见,但日本人很少见。欧美对颞骨,特别是在鼓室及听小骨的形态学有许多研究。日本在近几年才有耳硬化症病例的散在报告,但是颞骨形态学的研究还为数不多。本文对日本人镫骨前庭窗有否硬化现象进行组织学观察。材料来自29具日本人尸体,采取43侧颞骨,年龄为新生儿至74岁,男性21例32侧,女性8例11侧,以圆筒状取骨法切取颞骨,20％福尔马林固定,经三氯醋酸脱钙后火棉胶包埋,水平断面切片,制成20～30μm标本,除HE染色外,行PAS、Van Gieson及Masson等染色,用光学显微镜观察。结果与讨论:镫骨底板的基本构造是由内 Ear sclerosis is extremely common in Caucasians, but Japanese are rare. There are many studies on the morphology of the temporal bone in Europe and the United States, especially in the tympanic cavity and ossicles. Japan has had scattered reports of cases of otosclerosis in recent years, but few studies have done about temporal bone morphology. In this paper, the histopathological observation of whether the scapular vestibular window of Japanese has sclerosis has been done. The material was obtained from 29 Japanese corpses. Twenty-four temporal bones were used, ranging in age from neonatal to 74 years. There were 21 males and 32 females, 11 females. The cylindrical bone was used for the removal of the temporal bone and 20% formalin fixation. After decalcification with trichloroacetic acid, collodion was embedded and sliced ​​in horizontal section to make 20 ~ 30μm specimens. The specimens were stained with PAS, Van Gieson and Masson, and stained with light microscope. Results and Discussion: The basic structure of the stapes floor is made by