脑血吸虫病的CT和MR诊断

CT and MRI diagnosis of the cerebral schistosomiasis

目的通过对脑血吸虫病的CT和MRI表现与手术后病理材料进行分析,探讨脑血吸虫病的CT和MRI特征及诊断价值。方法回顾性分析65例脑血吸虫病的CT和MRI平扫和增强表现,并结合4例手术后病理材料进行比较。结果病灶位于脑皮层或皮层下区,直径多在5～35mm。病灶密度或信号与脑灰质一致,周围水肿环绕。增强后病灶小结节呈簇状聚集成团,明显延迟强化延迟消退。结论脑血吸虫病的CT和MRI表现具有特征性,如出现上述征象高度提示脑血吸虫病。

Objective To discuss CT and MRI features of the cerebral schistosomiasis and its clinical value through analyzing the CT and MRI images and post- surgery pathological findings.Methods CT and MRI images of the cerebral schistosomiasis in 65 cases proved by clinic or pathology were analyzed retrospectively, and compared with the post- surgery pathological findings in 4 cases. Results Most of the lesions were located in cerebral cortex or in the conjunction of gray andwhite matter,sized 5mm to 35mm in diameter. Lesions were isointense as gray matter and with surrounding edema. The lesions manifestied spiculated nodules with delayed enhancement and delayed attenuating after the administration of contrast media.Conclusion The characteristic CT and MRI findings of schistosomiasis are highly suggestive in diagnosis. [