Upon arrival to our emergency department, a non-contrast brain CT scan performed.
There is dependent layering intraventricular material which appears relatively hyperattenuating to the CSF, mostly represents pus.
The ventricles are dilated with periventricular hypoattenuation, suggestive of active hydrocephalus.
The provisional diagnosis here is intraventricular rupture of the right periventricular cerebral abscess complicated by ventriculitis and active obstructive hydrocephalus.