不同病理类型肺癌的脑转移CT平扫影像表现

目的:探讨不同组织学类型的肺癌患者脑转移的CT影像学特点。方法:对98例经病理证实的不同类型肺癌患者脑转移CT资料,从病灶的数目、密度、囊变、出血、瘤周水肿等几个方面分析。结果:鳞癌脑转移男性多发,平扫多呈高密度,重度水肿率、囊变率较高;腺癌脑转移女性多见,平扫多呈低密度,瘤灶出血较多,囊变率低;未分化癌无性别倾向性,平扫呈高密度,水肿较轻,瘤灶几乎无囊变及出血。结论:不同病理类型肺癌的脑转移影像学表现存在差异性。

Unenhanced CT imaging features of brain metastasis of lung cancer with different pathology

Objective： To investigate CT imaging features of brain metastasis of lung cancer with different pathology. Methods： Ninty-eight cases brain metastasis of lung cancer with different pathology underwent CT imaging , then analysed the features of the focus such as their number, density, cystic lesion, bleeding, edema around the tumor ceils etc. Results： Multiple brain me- tastasis of lung squamous cell carcinoma predominantly affected male patients, which showed high density on plain CT scans, high degree of edema rate and high cystic lesions rate. Multiple brain metastasis of lung adenocarcinoma predominantly affected male, which showed low density on plain CT scans, more bleeding in tumor lesions and low cystic lesions rate. There was no gender inclination among undifferentiated carcinoma, plain CT scan showed high density, low degree of edema, almost no cystic lesions and bleeding. Conclusion： Certain imaging differences exist among lung squamous cell carcinoma, adenocarcinoma and undifferentiated carcinoma （large cell carcinoma and small cell carcinoma）.