局限性肌萎缩在神经科并不少,诊断常不明。本文分析165例局限性肌萎缩的肌电图结果,以期协助早期诊断。一般资料 165例均系门诊资料确定为某肢肌萎缩待查者,凡临床已诊断为脊髓进行性肌萎缩或原发性肌病者均删除。其中男110例,女55例。年龄7～20岁41例,21～40岁84例,41～60岁39例,68岁1例。病程不足1个月4例,1～12个月51例,1～ Limitations Muscular atrophy is not uncommon in neurology and the diagnosis is unknown. This article analyzes 165 cases of muscle atrophy EMG results, in order to assist in the early diagnosis. General information 165 cases were outpatient information identified as a limb muscle atrophy pending investigation, where clinical diagnosis of spinal muscular atrophy or primary myopathy were deleted. There were 110 males and 55 females. 41 cases were aged 7-20 years, 84 cases were 21-40 years old, 39 cases were 41-60 years old and 1 case was 68 years old. Course of less than 1 month in 4 cases, 1 to 12 months in 51 cases, 1 ~