患者,男,18岁。3个月内曾先后两次发病入院,经MRI证实首次发病为脊髓血管梗塞,二次发病为脊髓血管畸形出血。首次发病表现:活动中突然左侧肩部疼痛,病后疼痛渐加重向左前胸、上肢放散,同时出现左侧肢无力、尿潴留。左侧肢体肌力约Ⅱ至Ⅲ级,左侧T_2至T_8水平痛、温觉消失,右侧C_8水平以下痛、温觉消失,全身触觉存在。双Babinski氏征阳性。腰穿正常。诊断 Patient, male, 18 years old. In 3 months had twice incidence of admission, confirmed by MRI for the first time the incidence of spinal vascular infarction, the second incidence of spinal vascular malformations bleeding. The first incidence of performance: sudden left shoulder activity in the activity, the pain gradually increased to the left chest after the disease, upper extremity dispersion, while the left limb weakness, urinary retention. Left limb muscle strength about Ⅱ to Ⅲ level, the left T_2 to T_8 level pain, temperature sensation disappeared, right below the C_8 level of pain, temperature sensation disappeared, the whole body tactile exists. Double Babinski’s sign positive. Waist wear normal. diagnosis