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Analysis of CT imaging of brain metastasis

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Author:
No author available
Journal Title:
CHINESE JOURNAL OF NEUROMEDICINE
Issue:
4
DOI:
10.3760/cma.j.issn.1671-8925.2003.04.005
Key Word:
脑转移瘤;CT

Abstract: 目的探讨脑转移瘤的CT影像特点,以提高其诊断准确率.方法利用84例已确诊原发灶的颅内转移瘤资料,进行回顾性分析.结果84例中,有70例是肺癌脑转移,占83.3%,这点有助于帮助诊断.典型的CT表现有:(1)环状强化或环状和结节状混合强化为绝大多数;(2)周围大范围水肿,与病灶大小不成比例;(3)颅内多发为常见.而非典型的CT表现主要有多灶内出血和少数无水肿的病灶或单发结节灶.结论脑转移瘤绝大多数有典型CT表现,但也要与脑脓肿和胶质瘤相鉴别.

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