临床上已知病原的脑萎缩为继发性脑萎缩,不明原因的脑萎缩为原发性脑萎缩一国內已有报道。本文将收治的18例脑萎缩可能的病因及临床初步分析摘要如下: 本文男15例,女3例。年龄在16～59岁,以40～49岁者居多10例。均缓慢起病,病程在1～15年。表现智能改变及精神症状者14例,神经衰弱征群5例,癲痫发作4例。颅神经以Ⅸ、X损害者居多7例。假性球麻痹3例。肢体力弱及轻偏瘫18例。多动1例,小脑性共济失调4例。步态不稳8例。有脑干反射9例,锥体束征12例,大小便障碍3例。脑脊液基本 Clinically known pathogen brain atrophy for secondary brain atrophy, unexplained brain atrophy of primary brain atrophy has been reported in China. This article will be admitted to 18 cases of possible causes of brain atrophy and clinical preliminary analysis is as follows: This male 15 cases, 3 females. The age of 16 to 59 years old, 40 to 49 years old mostly 10 cases. Slow onset, duration of 1 to 15 years. 14 cases showed intelligent changes and mental symptoms, 5 cases of neurasthenia syndrome, 4 cases of seizures. Cranial nerves to IX, X damage mostly in 7 cases. Pseudobulbar paralysis in 3 cases. Limb weakness and hemiplegia in 18 cases. 1 case of hyperactivity, 4 cases of cerebellar ataxia. Gait instability in 8 cases. There are 9 cases of brainstem reflex, pyramidal tract signs in 12 cases, 3 cases of urinary disorders. Cerebrospinal fluid basic