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Related Experiment Videos

Computed tomography in young children with herpes simplex virus encephalitis.

T Sugimoto, M Woo, H Okazaki

    Pediatric Radiology
    |January 1, 1985
    PubMed
    Summary

    Computed tomographic (CT) scans are not reliable for early diagnosis of herpes simplex virus encephalitis in infants. Longitudinal CT studies reveal distinct findings in young patients, aiding in understanding long-term effects.

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    Area of Science:

    • Neurology
    • Radiology
    • Pediatrics

    Background:

    • Herpes simplex virus encephalitis (HSVE) is a severe neurological condition in infants and young children.
    • Early diagnosis and understanding the neuroimaging findings are crucial for effective management and prognosis.

    Purpose of the Study:

    • To investigate the utility of computed tomographic (CT) scans in the early diagnosis of HSVE in infants and young children.
    • To describe the characteristic CT findings and their evolution over time in this patient population.
    • To compare CT findings in neonates and young children with those in older children and adults.

    Main Methods:

    • Retrospective analysis of CT scans from eight infants and young children diagnosed with HSVE.
    • Detailed examination of initial CT scans for early diagnostic indicators.

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  • Longitudinal follow-up CT scans in survivors to observe changes over time.

    • Main Results:

    • Initial CT scans often lacked specific findings for early HSVE diagnosis, showing diffuse edema or non-specific changes.
    • Delayed CT findings included unilateral low attenuation (4 days post-onset) and high attenuation (6 days post-onset) in some cases.
    • Longitudinal studies in survivors revealed calcification with ventriculomegaly (3/5) and gyriform calcification (2/3).
    • Multicystic encephalomalacia was observed in one patient 6 months after neonatal HSVE onset.

    Conclusions:

    • CT scans are generally not sufficient for early diagnosis of HSVE in infants and young children.
    • CT findings in young HSVE patients differ significantly from older individuals.
    • Longitudinal CT imaging is essential for understanding the pathophysiology and long-term central nervous system sequelae in HSVE survivors.