颅内脂肪瘤少见，约占颅内肿瘤0．34％，胼胝体是其好发部位，我们遇见二例报告如下：例：女性，19岁，患者于89年9月9日无诱因突然头痛约持续10小时，伴恶心，呕吐。CT扫描：在透明隔区见类圆形低密度区约4X3．5厘米，增强后，密度不增加，双侧脑室未显示。诊断：考虑胼胝体脂 Intracranial lipoma is rare, accounting for approximately 0.34% of intracranial tumors, and the corpus callosum is its predilection site. We have two cases reported as follows: Example: Female, 19 years old, patient had no incentive for sudden headache on September 9, 1989 For 10 hours with nausea and vomiting. CT scan: In the transparent compartment, a round low density area of ​​about 4X3.5 cm was seen. After the enhancement, the density did not increase, and the bilateral ventricles did not appear. Diagnosis: Consider body fat