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  • Title: [A case of cerebellar meningo-encephalitis caused by Epstein-Barr virus(EBV): usefulness of Gd-enhanced MRI for detection of the lesions].
    Author: Kuwahara S, Kawada M, Uga S, Mori K.
    Journal: No To Shinkei; 2000 Jan; 52(1):37-42. PubMed ID: 10689689.
    Abstract:
    We report a patient with cerebellar meningo-encephalitis by Epstein-Barr virus(EBV) in which the responsible lesions were detected by Gd-enhanced MRI. A 61-year-old woman with a history of liver cirrhosis and diabetes mellitus presented with cerebellar signs such as ataxia of the trunk, bilateral upper and lower extremities and slurred speech two weeks after the acute upper respiratory inflammation for several days. Serum IgM antibody(Ab) to EBV viral capsid antigen(VCA) was 1:10, Ab to EBV(VCA) IgG was 1:1280, Ab to early antigen diffuse and restricted (EADR) IgG was 1:40, Ab to EBV nuclear antigen (EBNA) was 1:80. Other viral antibody titers were not elevated significantly in serum. Cerebrospinal fluid (CSF) pressure was 195 mmH2O, containing 464 cells/mm3, protein 68 mg/dl and glucose 43 mg/dl. Only CFS Ab to EBV(VCA) IgG elevated significantly (1:16). In acute phase plain MRI was normal except for swelling of the cerebellar hemispheres while Gd-enhanced MRI showed a leptomeningeal enhancement of bilateral cerebellar hemispheres and of vermis disappeared within one month. A homogeneously enhanced lesion in the left dentate nucleus appeared one month after the onset of illness. This lesion had been detected on Gd-enhanced MRI for three months after clinical symptoms were improved. No abnormal finding was shown in the supratentorial region during the whole clinical course. In the literature, EBV encephalitis has a wide range of MR findings which may vary in a short period. We emphasize that frequent MR examinations including Gd-enhanced MRI is useful to evaluate inflammatory or demyelinating diseases in the posterior fossa.
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