Wysocki J
Zakład Anatomii Prawidłowej AM w Warszawie.
Otolaryngol Pol. 1998;52(4):463-6.
The round window niche entry (fossula fenestrae cochleae, fossula fenestrae rotundae) is one of the main structures in the labyrinthine wall of the tympanic cavity. Its variability is fairly significant and very important in otosurgery. In order to learn more about the morphology of the round window niche entry, a microanatomical study on 100 temporal bones obtained from cadavers aged 0-71 y. was performed. A standard set of otosurgical equipment was used. Five morphological forms of the round window niche entry were differentiated: triangular, semicircular, ovally horizontal, ovally vertical and round ones. Triangular forms were observed only in children of over 4 years of age and round forms almost only in young children, of age below this borderline (the beginning of pneumatization of the temporal bone). The differences between these two groups were statistically significant.
圆窗龛入口（蜗窗小凹、圆窗小凹）是鼓室迷路壁的主要结构之一。其变异性相当显著，在耳外科手术中非常重要。为了更深入了解圆窗龛入口的形态，对100块取自0至71岁尸体的颞骨进行了显微解剖学研究。使用了一套标准的耳外科手术设备。区分出圆窗龛入口的五种形态：三角形、半圆形、椭圆形水平、椭圆形垂直和圆形。三角形形态仅在4岁以上儿童中观察到，而圆形形态几乎仅在低于此界限（颞骨气化开始）年龄的幼儿中出现。这两组之间的差异具有统计学意义。
