鼻咽癌放射治疗后会损伤邻近脑组织,称放射性脑病。CT是本病可靠的诊断工具。该病常误诊为脑转移而误治,造成严重后果。本文分析了该病的发病机理,CT诊断。 Radiation therapy of nasopharyngeal carcinoma will damage adjacent brain tissue, called radioactive encephalopathy. CT is a reliable diagnostic tool for this disease. Often misdiagnosed as misdiagnosis of brain metastases, resulting in serious consequences. This article analyzes the pathogenesis of the disease, CT diagnosis.