脑转移瘤是指身体其他部位的恶性肿瘤转移至颅内者。近年来其发病率和死亡率仍较高，因此，提高对该病的认识，及时有效地诊治病人具有重要的意义。作者自1997年1月至1998年1月共收治颅内转移瘤21例，现就其临床表现和CT特征报告如下。临床资料一、一般资料：本组共21例，男性1 Brain metastases refers to the transfer of malignant tumors in other parts of the body to the brain. In recent years, its morbidity and mortality are still high, therefore, to raise awareness of the disease and timely and effective diagnosis and treatment of patients is of great significance. The authors from January 1997 to January 1998 were treated intracranial metastases in 21 cases, now on its clinical manifestations and CT features are reported below. Clinical data First, the general information: A total of 21 patients in this group, men 1