Neuroimaging findings of congenital Zika virus infection: a pictorial essay

Mohammad Zare Mehrjardi, Andrea Poretti, Thierry A G M Huisman, Heron Werner, Elham Keshavarz, Edward Araujo Júnior

Research output: Contribution to journalArticle

Abstract

Zika virus (ZIKV) is a mosquito-borne arbovirus from the Flaviviridae family. It had caused several epidemics since its discovery in 1947, but there was no significant attention to this virus until the recent outbreak in Brazil in 2015. The main concern is the causal relationship between prenatal ZIKV infection and congenital microcephaly, which has been confirmed recently. Moreover, ZIKV may cause other central nervous system abnormalities such as brain parenchymal atrophy with secondary ventriculomegaly, intracranial calcification, malformations of cortical development (such as polymicrogyria, and lissencephaly-pachygyria), agenesis/hypoplasia of the corpus callosum, cerebellar and brainstem hypoplasia, sensorineural hearing-loss, and ocular abnormalities as well as arthrogryposis in the infected fetuses. Postnatal (acquired) ZIKV infection usually has an asymptomatic or mildly symptomatic course, while prenatal (congenital) ZIKV infection has a more severe course and may cause severe brain anomalies that are described as congenital Zika syndrome. In this pictorial essay, we aim to illustrate the prenatal and postnatal neuroimaging findings that may be seen in fetuses and neonates with congenital Zika syndrome, and will discuss possible radiological differential diagnoses. A detailed knowledge of these findings is paramount for an early correct diagnosis, prognosis determination, and counseling of the affected children and families.

Original languageEnglish (US)
Pages (from-to)1-6
Number of pages6
JournalJapanese Journal of Radiology
DOIs
Publication statusAccepted/In press - Jan 10 2017

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Keywords

  • Congenital
  • Microcephaly
  • Neuroimaging
  • Radiology
  • Zika virus (ZIKV)

ASJC Scopus subject areas

  • Radiology Nuclear Medicine and imaging

Cite this

Zare Mehrjardi, M., Poretti, A., Huisman, T. A. G. M., Werner, H., Keshavarz, E., & Araujo Júnior, E. (Accepted/In press). Neuroimaging findings of congenital Zika virus infection: a pictorial essay. Japanese Journal of Radiology, 1-6. https://doi.org/10.1007/s11604-016-0609-4