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目的:探讨脑原发性淋巴瘤的CT、MRI特征,以提高诊断水平。材料和方法:回顾性分析经病理证实的20例脑原发性淋巴瘤的CT和MRI表现。结果:20例共52个病灶,其中脑干4个、基底节14个、丘脑1个、胼胝体8个、枕叶10个、顶叶5个、颞叶5个、额叶4个、硬脑膜1个。位于脑深部近中线区域占78.8%;形态不规则(71.2%),内部发现囊变(15.4%),均未见钙化、出血。CT平扫均呈等或略高密度。T1WI呈低信号(30.7%)等信号(63.5%),T2WI等信号(69.3%),高信号(26.9%),增强后均呈显著增强。周围水肿(84.6%)。结论:脑原发性淋巴瘤的CT、MRI表现有一定特点,熟悉其临床及表现特点有助于对本病作出正确的诊断。
Objective: To investigate the CT and MRI features of brain primary lymphoma in order to improve the diagnostic level. Materials and Methods: CT and MRI findings of 20 cases of primary brain lymphoma confirmed by pathology were analyzed retrospectively. Results: There were 52 lesions in 20 cases, including 4 brainstem, 14 basal ganglia, 1 thalamus, 8 corpus callosum, 10 occipital lobes, 5 parietal lobes, 5 temporal lobes, 4 frontal lobes, 1 Located in the deep brain near the midline area accounted for 78.8%; irregular shape (71.2%), internal cystic degeneration (15.4%), no calcification, bleeding. CT scan showed equal or slightly higher density. T1WI showed low signal (30.7%) and other signals (63.5%), T2WI signal (69.3%) and high signal (26.9%). Peripheral edema (84.6%). Conclusion: CT, MRI manifestations of brain primary lymphoma have some characteristics, familiar with its clinical and performance characteristics help to make the correct diagnosis of the disease.