Updated Imaging Findings in Congenital Zika Syndrome: A Disease Story That is Still Being Written

Topics in Magnetic Resonance Imaging : TMRI
Maria de Fatima Viana Vasco AragaoPaul M Parizel

Abstract

In congenital Zika virus syndrome (CZS), the most frequent radiological findings are calcifications in the cortical-white matter junction and malformations of cortical development (pachygyria or polymicrogyria, which occur predominantly in the frontal lobes, or a simplified gyral pattern), ventriculomegaly, enlargement of the cisterna magna and the extra-axial subarachnoid space, corpus callosum abnormalities, and reduced brain volume. This syndrome can also result in a decrease in the brainstem and cerebellum volumes and delayed myelination. Infants with CZS may show venous thrombosis and lenticulostriate vasculopathies. Over a 3-year follow-up period, many infants with CZS showed hydrocephalus, reduction in brain calcifications, and greater reduction in brain thickness.

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