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报告经CT检查的肺癌脑转移瘤32例,20例有组织学结果,13例为腺癌(65%)。全部脑转移瘤中,单发灶17例,多发灶15例。瘤灶形态大多呈环形(81%),是肺癌脑转移在CT图像上的重要特征。单发性脑转移甚易误诊。大剂量延迟扫描可提高脑转移瘤的检出率。
Thirty-two cases of brain metastases from lung cancer were examined by CT. Twenty patients had histological findings and 13 patients had adenocarcinoma (65%). In all brain metastatic tumors, there were 17 single lesions and 15 multiple lesions. Most of the tumors were in a ring shape (81%), which is an important feature of lung cancer brain metastases on CT images. Single brain metastases are easily misdiagnosed. High-dose delayed scan improves the detection rate of brain metastases.