脑分水岭梗塞(WSI)是指两条脑动脉分布区之间边缘部位的梗塞。近年来,我们收治21例,均经CT检查证实。1.临床资料:本组男13例,女8例;年龄45～67岁。其中合并高血压19例,糖尿病5例,高脂血症14例。患者均为急性起病,肢体肌力为Ⅰ～Ⅳ级,其中发病时右侧上、下肢肌力弱伴言语不清12例,CT示左额、顶叶低密度灶8例,左额、顶叶交界区有三角形低密度灶4例;发病时左侧上、下肢肌力弱7例,CT均示右额、顶叶低密度灶;头 Cerebral watershed infarction (WSI) refers to the infarction between the marginal parts of the two cerebral arteries. In recent years, we treated 21 cases, confirmed by CT examination. 1. Clinical data: The group of 13 males and 8 females; aged 45 to 67 years. 19 cases of hypertension, 5 cases of diabetes, hyperlipidemia in 14 cases. Patients were acute onset, limb muscle strength Ⅰ ~ Ⅳ level, in which the onset of right upper and lower limb weakness with vague speech in 12 cases, CT showed left forehead, parietal lobe low density lesions in 8 cases, left frontal lobe, In the parietal lobe junction, there were 4 cases of triangular low-density foci; on the left side, the left and right lower limbs were weakly weakened in 7 cases; CT showed right forehead and parietal lobe low-density foci;