抄録
Great interest has been focussed on the morphological changes of cochlea during the development of endolymphatic hydrops. The morphological changes of the vestibular organs during the development of endolymphatic hydrops however, still remain unclear. This study using scanning electron microscopy reveals the morphological changes of the vestibular organs one or two months after obliteration of the endolymphatic sac and duct. There was no difference in the extent of the hydrops between these two groups. The saccular macula displayed the greatest degree of hydrops. Missing, fusion and/or disarrangement of the sensory hairs as well as the decrease in glycocalyx were noted in the saccular macula. The disarrangement of the cilia and the decrease in glycocalyx was also observed in the utricular macula and the crista ampullaris.
