Acanthamoeba encephalitis in an immunocompetent child and review of the imaging features of intracranial acanthamoebic infections in immunocompetent patients

Granulomatous amoebic encephalitis caused by Acanthamoeba is a rare entity mainly affecting immunocompromised patients. We reported a case of Acanthamoeba encephalitis of a 1-year-old immunocompetent child and described the CT and MRI findings of the brain, while reviewing the relevant literatures. The imaging findings of Acanthamoeba meningoencepalitis in immunocompetent patients are non-specific and pose a diagnostic challenge.