患者男,66岁。右肺中心型低分化鳞癌放疗后皮下及腹腔转移。1987年7月上旬左眼胀痛、视力锐减,左额刺痛。半月后查左眼失明,外斜位固定,上睑下垂,视乳头边界清。右眼视力0.3,运动正常,内眦球结膜及眼底静脉扩张出血,视乳头水肿。嗅觉正常。B超左眼球后三角区形态失常回声 Male patient, 66 years old. Subcutaneous and intra-abdominal metastases in poorly differentiated squamous cell carcinoma of right lung after radiotherapy. In early July 1987, his left eye had pain, sharp reduction in visual acuity, and left frontal tingling. After half a month, the left eye was blinded, the outer oblique was fixed, and the upper eyelid drooped. The right eye visual acuity was 0.3. The movement was normal. The conjunctiva of the internal malleolus and the veins of the fundus were dilated and bleeding. The papilledema was observed. The sense of smell is normal. B-ultrasound left posterior triangle morphological aberration echo