Nakashima A, Horichi Y, Takagi Y, Miyamoto S, Takashima S, Inoue H
Department of Radiology, Himi City Hospital, Toyama, Japan.
Radiat Med. 1999 Sep-Oct;17(5):369-71.
We studied the CT and MR images of a patient with Japanese encephalitis. The first symptom was general malaise with high fever. The diagnosis of meningoencephalitis was made by spinal tap and clinical presentation. CT on the third day of illness showed no significant findings. MRI on the fifth day of illness demonstrated that the left thalamus and bilateral putamen were hyperintense on T2-weighted images. On CT one month later, the density in the thalamus and bilateral putamen was normal. MRI two month later showed high signal intensity only in the left thalamus. The patient recovered, but was judged to have dementia according to the simple dementia scale of Hasegawa. Flaccid paralysis was observed during the acute period.
我们研究了一名日本脑炎患者的CT和MR图像。首发症状为全身不适伴高热。通过腰椎穿刺和临床表现诊断为脑膜脑炎。发病第三天的CT检查未见明显异常。发病第五天的MRI显示，在T2加权图像上左侧丘脑和双侧壳核呈高信号。发病一个月后的CT检查显示，丘脑和双侧壳核密度正常。发病两个月后的MRI仅显示左侧丘脑有高信号强度。患者康复，但根据长谷川简易痴呆量表判断为痴呆。急性期观察到弛缓性麻痹。
