作者等对4名因严重单侧美尼尔氏病而行迷路切除术患者的椭圆囊斑进行了电子显微镜检查,其结果如下: 在所有4个标本中,椭圆囊斑的细胞组合大致正常,可区分Ⅰ型及Ⅱ型感觉细胞。Ⅰ型细胞为神经杯(Nerve chalices)所包围。在感觉细胞基底部可见突触体(synatic body)。在2个较年轻的标本中,细胞的表层结构正常,可见纤毛束由感觉细胞伸出,微绒毛由支持细胞伸出;而在 The authors performed electron microscopic examinations of four elliptic cysts in patients undergoing labyngectomy for severe unilateral Meniere’s disease and the results were as follows: The cell assemblage of the oval vesicles was approximately normal in all four specimens, Differentiation between type I and type II sensory cells. Type I cells are surrounded by Nerve chalices. Synaptic bodies are visible at the base of sensory cells. In the 2 younger specimens, the surface structure of the cells was normal, showing that the bundle of cilia protruded from the sensory cells and the microvilli extended from the supporting cells. In the case of