Case Series Imaging of the neurological manifestations of dengue: A case series

Varsha Rangankar, Divyajat Kumar, Rajesh Kuber, Tushar Kalekar

About the author(s) Varsha Rangankar, Department of Radiodiagnosis, Dr D.Y. Patil Medical College, Hospital and Research Centre, Pune, India
Divyajat Kumar, Department of Radiodiagnosis, Dr D.Y. Patil Medical College, Hospital and Research Centre, Pune, India
Rajesh Kuber, Department of Radiodiagnosis, Dr D.Y. Patil Medical College, Hospital and Research Centre, Pune, India
Tushar Kalekar, Department of Radiodiagnosis, Dr D.Y. Patil Medical College, Hospital and Research Centre, Pune, India

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Abstract

Dengue fever, the most common arboviral tropical disease, has shown a rapid increase in incidence over the last few decades. Increasing evidence of the various neurological manifestations in dengue has been documented in the literature. Patients positive for dengue on serology and with neurological manifestations were analysed and included in the present case series and brief review. The cases reveal a spectrum of neurological findings in dengue infection and include dengue haemorrhagic encephalitis, acute disseminated encephalomyelitis (ADEM), reversible splenial lesion syndrome (RESLES), intracranial haematoma, and posterior reversible encephalopathy syndrome (PRES), with a focus on the relevant imaging features.

Contribution: The present case series emphasises the importance of understanding the relevant imaging findings and potential aetiopathogenesis of neurological involvement in dengue infected patients in order to make the correct diagnosis for effective treatment and improved outcome.

Keywords

dengue; haemorrhagic encephalitis; PRES; ADEM; subdural haemorrhage; splenium; RESLES; cytotoxic lesions of the corpus callosum

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