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本文报告８例头颈区去神经性肌萎缩的ＣＴ和ＭＲＩ表现，旨在评价其临床意义。引起肌萎缩的原因包括颈静脉孔区肿瘤４例（颈静脉球瘤、转移瘤各２例），鼻咽癌２例，中颅凹区脑膜瘤１例，上颌窦囊腺癌转移至咽旁１例。ＣＴ和ＭＲＩ表现为特定的颅神经运动支支配区肌肉轮廓缩小，脂肪间隙增宽，病程较长者表现为受累肌群完全为脂肪组织取代；３例根据肌萎缩征象发现原发病变。作者认为：认识去神经性肌萎缩的ＣＴ、ＭＲＩ表现可避免误为其它异常；根据肌萎缩的范围、分布可有针对性检查某些区域，以发现原发病变。
This article reports 8 cases of demyelinating head and neck demyelinating CT and MRI manifestations, to evaluate the clinical significance. The causes of muscle atrophy include 4 cases of jugular foramen (jugular vein tumor, 2 cases of metastatic tumor), 2 cases of nasopharyngeal carcinoma, 1 case of meningioma in midcranial space, 1 case. CT and MRI showed a narrowing of the muscle contour of the cranial motor branch and a widened fat gap. The longer duration of the disease, the affected muscle group was completely replaced by the adipose tissue. Three cases showed the primary lesion according to the signs of muscle atrophy. The authors believe that: understanding of denervated muscle atrophy CT, MRI performance can be mistaken for other abnormalities; according to the scope of muscle atrophy, distribution can be targeted to check some areas to find the primary lesion.