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February 23, 2026BMC Infectious DiseasesOpen Access

Posterior reversible encephalopathy syndrome in dengue virus infection with concurrent encephalitis and ischemic stroke: a case report

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Authors

DRDONGDONG RENWKWin KhaingMPMervyn Qi Wei Poh

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Overview

Case report shows altered mental status linked to encephalitis and ischemic stroke in dengue, indicating the need for neurological monitoring.

Key Points

  • This case report discusses the occurrence of posterior reversible encephalopathy syndrome in a patient with dengue virus infection.
  • Case report of a 90-year-old woman with primary dengue virus serotype 3 infection.
  • Neuroimaging and cerebrospinal fluid analysis conducted during hospitalization.
  • Neurological evaluation and monitoring performed throughout the patient’s care.
  • The patient exhibited altered mental status and imaging showed bilateral vasogenic edema consistent with PRES.
  • Cerebrospinal fluid analysis showed mildly elevated protein with positive dengue IgM and IgG.
  • Near-complete resolution of symptoms and imaging was noted at follow-up after two months.

Cite This Study

REN et al. (2026) studied this question.

synapsesocial.com/papers/699ba0b872792ae9fd870da4https://doi.org/10.1186/s12879-026-12920-8
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