患者女,42岁,因右眼视力障碍3个月,于1995年2月6日入院。3个月前患者感右眼视物模糊,进行性加重。临床无内分泌功能障碍,无指(趾)端肥大症,无颅内压增高症状。既往无外伤史,无眼疾病史。入院检查:右眼2米指数不清伴颞侧偏盲,左眼视力、视野正常。眼底右侧视乳头苍白,左侧正常。双侧视盘边缘清晰。CT检查见鞍内有一团状阴影(2cm×2.5cm×2cm),边缘整齐,轮廓清楚,平扫为等密度,强化后肿块阴影明显增强,CT值86～108HU。在全麻下行右额开颅,切除垂体窝肿瘤。肿瘤呈视交叉前置型,突出鞍隔,呈灰白色,穿刺呈实质感。电凝切开包膜,肿瘤质地硬。牵引包膜并完整切除肿瘤(2cm×2.3cm×2cm)。病理报告:脑膜瘤(上皮型)。术后10日出院。随访1年,双眼视力正常(5.0),已参加正常劳动。 讨论:脑膜瘤多起于蛛网膜的内皮细胞。凡颅内蛛网膜颗粒或蛛网膜绒毛分布较多之处,均为肿 The patient, 42 years old, was admitted to hospital on February 6, 1995 for 3 months due to visual impairment in her right eye. 3 months ago the patient’s right eye blurred vision, progressive increase. No clinical endocrine dysfunction, no finger (toe) hypertrophy, no increased intracranial pressure symptoms. No previous history of trauma, no eye disease history. Admission examination: Right eye 2-meter index unclear with temporal hemianopsia, left eye vision, visual field is normal. Right eye papilla pale, left normal. Bilateral video disc edge clear. CT examination showed a group of saddle shadow (2cm × 2.5cm × 2cm), the edge of the neat, clear outline, equal density for the scan, after the enhancement of the shadow of the shadow was significantly enhanced CT value of 86 ~ 108HU. Right forehead under general anesthesia craniotomy, resection of pituitary tumors. The tumor was preoptic optic chiasm, prominent saddle, pale gray, puncture was a real sense. Coagulation incision envelope, the tumor texture hard. The capsule was pulled and the tumor completely resected (2 cm × 2.3 cm × 2 cm). Pathology report: Meningioma (epithelial type). After the discharge on the 10th. Followed up for 1 year, binocular vision was normal (5.0), has participated in normal work. Discussion: Meningioma mostly in the arachnoid endothelial cells. Where intracranial arachnoid granules or arachnoid villi distribution more, are swollen