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普遍认为急性中耳炎(AOM)与分泌性中耳炎(SOM)继发于咽鼓管炎症阻塞或狭窄所致的中耳通气不良。作者以往曾报道AOM和SOM颞骨标本的咽鼓管腔并无阻塞。本文对正常的与炎症性的咽鼓管解剖学和组织学进行了进一步研究。 71具1～24月婴儿尸体颞骨,其中46具无中耳病变者为正常组,15具AOM及10具SOM者为炎症组,经3％硝酸固定和脱钙,切成4块(1块包括中耳,另8块包括咽鼓管),洗净后浸入20％硫酸钠中和,逐步增加乙醇浓度脱水,石腊包埋,沿咽鼓管长轴垂直方向连续切片,HE、PAS和Masson三色法染色。显微镜下观察与测量咽鼓管各段管腔横截面积及粘膜
It is generally accepted that acute otitis media (AOM) and secretory otitis media (SOM) secondary to secondary eustachian tube obstruction or stenosis caused by poor middle ear ventilation. The authors previously reported that there was no obstruction of the eustachian tube lumen of the temporal bone specimens of AOM and SOM. In this paper, normal and inflammatory Eustachian tube anatomy and histology were further studied. Among the 46 infants who had no middle ear lesions, 71 had AOM and 10 had SOM, and they were inflamed with 3% nitric acid fixation and decalcification, and cut into 4 pieces (1 piece Including the middle ear, the other 8 including the eustachian tube), washed and immersed in 20% sodium sulfate and gradually increase the ethanol concentration of dehydration, paraffin embedding, along the longitudinal axis of the eustachian tube vertical slice continuous HE, PAS and Masson trichrome staining. Microscope observation and measurement of Eustachian tube cross-sectional area of the lumen and mucosa