A Case of Dengue Encephalitis with Double Doughnut Sign
Dengue Encephalitis with Double Doughnut Sign
Dengue is the fastest-growing mosquito-borne infection in the world. Encephalitis is an uncommon neurological manifestation of Dengue Infection. A unique radiological finding of the double doughnut sign is associated with dengue encephalitis. The term ’double doughnut sign’ was coined to describe lesions of the thalamus on each side of the brain. MRIs in some patients with Japanese encephalitis and herpes encephalitis can also show this sign, prompting inclusion of these diseases in the differential diagnosis. However, further research is needed to determine whether this finding is the most critical predictor for diagnosing dengue encephalitis. Our goal is to shed light on a rare MRI finding of the double doughnut sign in a patient with dengue encephalitis through this case report.
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