脑转移瘤是常见的颅内肿瘤，约占15％－25％[1]，本文通过对26例脑转移瘤CT表现的分析，以提高对颅内转移瘤的诊断水平。1材料和方法本文收集分析了26例脑转移瘤共57个病灶，经手术病理证实的5例（包括肺癌2例，结肠癌2例，胃癌1例），其余21例为已确诊原发灶后，又发现脑内肿 Brain metastases are common intracranial tumors, accounting for about 15% -25% [1]. In this paper, 26 cases of brain metastases CT analysis to improve the diagnosis of intracranial metastases. 1 Materials and Methods This paper collected a total of 26 cases of brain metastases in 57 lesions confirmed by surgery and pathology in 5 cases (including 2 cases of lung cancer, colon cancer in 2 cases, gastric cancer in 1 case), and the remaining 21 cases have been diagnosed with primary tumor After the brain swelling was found again