海绵状血管畸形也称海绵状瘤或海绵状血管病,是一种少见的神经系统病变。海绵状血管畸形多发生在大脑半球,发生于第三脑室者很少。作者报告了4例第三脑室海绵状血管畸形的临床表现、影像学特征以及手术治疗结果,并对该部位病变的处理方法进行了讨论。 4例病人均为女性,年龄32～52岁。主要临床表现为记忆力障碍,并有颅内压增高、脑积水和下丘脑损伤的症状体征。CT扫描表现为第三脑室内2～3cm园形低密度病灶。可以呈现强化,伴或不伴侧脑室扩大。MRI检查,畸形团一般呈等或长T_1、长或 Cavernous vascular malformation, also known as cavernous or cavernous vascular disease, is a rare neurological disease. Cavernous malformations occur in the cerebral hemispheres, rarely occurs in the third ventricle. The authors reported the clinical manifestations, imaging features, and surgical outcomes of the cavernous vascular malformations in the third ventricle in four patients and discussed the treatment of lesions in the site. 4 patients were female, aged 32 to 52 years old. The main clinical manifestations of memory disorders, and increased intracranial pressure, hydrocephalus and hypothalamic signs and symptoms of injury. CT scan showed the third ventricle 2 ~ 3cm park-shaped low-density lesions. Can show enhanced, with or without ventricular enlargement. MRI examination, deformity groups were generally equal or long T_1, long or