论文部分内容阅读
目的 探讨肺癌脑转移的MRI特征及其与病理类型的关系。方法 对 85 8例经临床及病理证实为肺癌的患者行脑部MRI检查 ,并进行回顾性分析与其原发肿瘤的病理类型进行对照研究。结果 85 8例行MRI检查的患者中 ,有脑转移者 393例 ,占 4 5 .8%。其中腺癌 117例 (2 9.8% ) ,小细胞肺癌 110例 (2 8.0 % ) ,鳞癌 5 2例 (13.2 % ) ,腺鳞癌 16例 (4.1% ) ,大细胞癌 2例 (0 .5 % ) ,类癌 1例(0 .3% ) ,不知确切病理亚型 95例 (2 4 .2 % )。在 19例脑膜转移的患者中 ,原发病为腺癌 6例 ,小细胞肺癌 5例 ,鳞癌 4例 ,病理类型不明者 4例。在 374例脑实质转移的患者中 ,病灶周围无明确水肿 12 0例 ,轻度水肿 98例 ,中度水肿 70例 ,重度水肿 86例。结论 肺癌容易发生脑转移 ,MRI增强扫描有助于肺癌脑转移的诊断。
Objective To investigate the MRI features of brain metastases of lung cancer and its relationship with pathological types. Methods Brain MRI was performed in 858 patients with clinically and pathologically confirmed lung cancer. The pathological types of primary tumors were analyzed retrospectively. Results Of the 858 patients who underwent MRI examination, 393 had brain metastases, accounting for 45.8%. There were 117 cases of adenocarcinoma (9.8%), 110 cases of small cell lung cancer (28.0%), 52 cases of squamous cell carcinoma (13.2%), 16 cases of adenosquamous carcinoma (4.1%) and 2 cases of large cell carcinoma. 5%), carcinoid in 1 case (0.3%), I do not know the exact pathological subtype in 95 cases (24.2%). In 19 cases of meningeal metastasis, the primary disease was adenocarcinoma in 6 cases, small cell lung cancer in 5 cases, squamous cell carcinoma in 4 cases and pathological type in 4 cases. Among 374 patients with parenchymal metastasis, there were no clear edema around the lesion in 120 cases, mild edema in 98 cases, moderate edema in 70 cases and severe edema in 86 cases. Conclusions Brain metastasis is easy to occur in lung cancer, MRI enhanced scan is helpful for the diagnosis of brain metastases of lung cancer.