先天性脊椎骨端異形成症の側頭骨病理組織学的所見

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Temporal bone histopathology of a case of congenital spondyloepiphyseal dysplasia was reported. The major findings were chronic suppurative otitis media, additional branch of the anterior crus of the stapes to the otic capsule, abnormal course of tensor tympani muscle tendon and crista neglecta in the horizontal canal ampulla. Cochlear structures could not be investigated because of a severe technical artifact.Although this disease had been clinically described by others to cause a sensorineural deafness, middle ear abnormalities such as otitis media and a anomaly of stapes in this case also pointed out the possibility to cause a conductive deafness in this disease. So far as we know, this is the first temporal bone histopathological report of this disease and also the first case showing the crista neglecta in the horizontal canal ampulla.
社団法人日本耳鼻咽喉科学会の論文