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目的 为提高对脑原发性恶性淋巴瘤的认识和ＣＴ、ＭＲＩ诊断水平。材料和方法 收集经病理证实的脑原发性恶性淋巴瘤１０例，其中ＣＴ检查７例，ＭＲＩ检查６例。结果 １０例病人中检出１３个病灶，ＣＴ和ＭＲＩ所见肿瘤形态不规则，其中１０个病灶有明显水肿。ＭＲＩ对原发性恶性淋巴瘤的检出率比ＣＴ更有效、ＭＲＩ示大部分病灶Ｔ_１ＷＩ呈低信号、Ｔ_２ＷＩ呈高信号。结论 分析了ＣＴ和ＭＲＩ误诊的原因后，认为ＭＲＩ应作为脑原发性恶性淋巴瘤的首选检查方法。
Objective To improve the understanding of primary malignant lymphoma in the brain and CT, MRI diagnosis. Materials and Methods 10 cases of pathologically confirmed primary lymphoma of the brain were collected, including CT examination in 7 cases and MRI in 6 cases. Results Thirteen lesions were detected in 10 patients. The tumors were irregular in morphology seen on CT and MRI, and 10 of them had marked edema. The detection rate of primary malignant lymphoma by MRI was more effective than CT, and MRI showed that most lesions showed low signal on T_1WI and high signal on T_2WI. Conclusion After analyzing the reasons for the misdiagnosis of CT and MRI, it is considered that MRI should be used as the primary examination method for primary malignant lymphoma of the brain.