Atypical clinical and radiological presentation of cryptococcal choroid plexitis in an immunocompetent woman.

Central nervous system cryptococcal infections usually manifests as meningitis, meningoencephalitis, encephalitis or ventriculitis. Cryptococcal choroid plexus inflammation is a particularly rare entity most often presenting with signs and symptoms of intracranial hypertension, hydrocephalus or meningitis due to a delayed diagnosis. Herein we reported the case of a 63-year-old immunocompetent woman with a history of temporal lobe epilepsy and behavioral disorders. Magnetic resonance imaging (MRI) and fluorodeoxyglucose positron emission tomographic (FDG-PET) images revealed atypical cryptococcal choroid plexitis with surrounding bitemporal edema without features of meningitis, intraparenchymal cryptococcoma or hydrocephalus. The patient underwent serial MRI and FDG-PET images performed before and after antifungal therapy that caused a marked clinical improvement. Our case also suggests a potential role of FDG-PET in the monitoring antifungal therapeutic efficacy.