论文部分内容阅读
目的:探讨原发性脑淋巴瘤的CT、MRI表现特征。材料和方法:回顾性分析9例经手术或穿刺并病理证实的原发性脑淋巴瘤的CT、MRI表现。结果:原发性脑淋巴瘤肿瘤呈单发6例、多发3例,幕上分布5例。病灶呈类圆形3例、不规则团片状6例。8例CT平扫呈高密度及混杂密度5例、低密度2例、等密度1例;5例增强扫描均匀增强3例,1例环形增强,1例未增强。CTA及DSA检查共4例,3例无异常血管征象,1例有少量肿瘤样血管。MRI平扫T1WI呈低信号5例、4例呈等信号,T2WI均呈高信号,增强扫描5例均匀增强4例。轻度至中度占位效应和瘤周水肿带,无钙化和出血征象。术后近期复查80%复发,复发水肿带加重。结论:原发性脑淋巴瘤CT和MRI有一定特征性,并可提示性诊断。
Objective: To investigate the CT and MRI features of primary brain lymphoma. Materials and Methods: CT and MRI findings of 9 cases of primary brain lymphoma confirmed by operation or puncture and pathology were retrospectively analyzed. Results: Primary brain lymphoma tumors were single in 6 cases, multiple in 3 cases, 5 cases in the supratentorial. Lesions were round in 3 cases, 6 irregular irregular pellets. CT scan of 8 cases showed high density and mixed density in 5 cases, low density in 2 cases and equal density in 1 case. In 5 cases, CT scan enhanced in 3 cases. One case showed ring enhancement and the other did not. CTA and DSA examination in 4 cases, 3 cases without abnormal signs of blood vessels, 1 case of a small amount of tumor-like blood vessels. There were 5 cases of low signal in T1WI, 4 cases of equal signal in T2WI and 4 cases in 5 cases of enhanced scanning. Mild to moderate mass effect and peritumoral edema zone, no signs of calcification and bleeding. Postoperative review of 80% recurrent, recurrent edema with aggravating. Conclusion: CT and MRI of primary brain lymphoma have some characteristics, and can prompt diagnosis.