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作者观察14例面神经麻痹10天～6年患者的耳后肌、镫骨肌的光学显微镜和超微结构所见,报道其肌萎缩、变性发生的情况,并论述了肌肉活检在临床的应用。本文先描述了正常的肌肉结构。面神经麻痹后耳后肌的光学显微镜下所见,主要是肌纤维体积缩小,最早出现于麻痹后2(1/2)周,由正常平均直径14.8μm(微米)减至11.8μm。麻痹后1(1/2)月可看到小群肌纤维萎缩,平均直径为6.5μm。麻痹后13月,大群肌纤维萎缩,肌膜下核增大,数目增多;以后核固缩,集聚成团。肌萎
The authors observed 14 cases of facial palsy 10 days to 6 years in patients with posterior muscle, stapes muscle optical microscopy and ultrastructure seen, reported its muscle atrophy, degeneration occurred, and discussed the application of muscle biopsy in clinical. This article first describes the normal muscle structure. After the facial paralysis, the posterior muscle of the posterior muscle seen under the optical microscope, mainly muscle fiber volume reduction, the earliest in paralysis after 2 (1/2) weeks, from the normal average diameter of 14.8μm (microns) to 11.8μm. One (1/2) month after paralysis, a small group of muscle fiber atrophy can be seen with an average diameter of 6.5 μm. After paralysis in March, a large group of muscle fibers atrophy, subdural nuclei increased, the number increased; after nuclear pyknosis, agglomeration into groups. Muscle wilt