Imaging Features of Choroid Plexus Hyperplasia

35-year-old female presented to the emergency department with 2 weeks history of headache and abnormal gait. Neurological examination revealed no sensory or motor deficits. Computer Tomography (CT) of the brain was requested in the emergency setting and showed diffuse dilatation of the lateral ventricles, third ventricle and fourth ventricle suggestive of communicating hydrocephalus. There is also diffuse enlargement of choroid plexuses in the lateral ventricles with extension into the third ventricle (Figure 1).