Michaels L
Department of Histopathology, University College and Middlesex School of Medicine, London, England.
Acta Otolaryngol Suppl. 1990;470:114-7; discussion 118. doi: 10.3109/00016488909138364.
The changes in the facial nerve at autopsy are described in a case in which there had been an acute onset of lower motor neurone facial paralysis, with a clinical diagnosis of Bell's palsy, 11 days before death. There was congestion and infiltration of the nerve in the internal auditory meatus and proximal fallopian canal by lymphocytes. Features indicating compression of the nerve in the proximal part of the fallopian canal were seen in the presence of congestion and osteoclastic resorption of the bone surrounding the proximal fallopian canal. Demyelination was present in the tympanic part of the nerve. A bulge below Bill's bar was found on the normal as well as the pathological side and cannot be accepted as evidence of pathological change. It is suggested on the basis of the pathological findings that the symptoms of Bell's palsy may arise from compression of the facial nerve in the proximal part of the fallopian canal.
在一例尸检中描述了面神经的变化情况。该病例在死亡前11天出现急性下运动神经元性面瘫，临床诊断为贝尔麻痹。内耳道及面神经管近端有淋巴细胞浸润及神经充血。面神经管近端周围骨质充血及破骨细胞吸收，提示面神经在此处受压。神经鼓室段存在脱髓鞘改变。正常侧和病变侧均在比尔棒下方发现有隆起，不能将其视为病理改变的证据。基于病理结果提示，贝尔麻痹的症状可能是由面神经管近端面神经受压所致。
