"Contrast enhancement could be present in some lesions secondary to breakdown of the blood–brain barrier."
Expected headings
"CT / MRI"
"Vasculopathies caused by varicella zoster virus (VZV) represent a group of illnesses involving both small and large CNS arteries, characterised by an inflammatory process affecting the vascular media and endothelium. It usually occurs in immunocompromised individuals due to viral reactivation and spread through the vessel wall. As a consequence, it may cause ischaemic infarction, aneurysm, cerebral and subarachnoid haemorrhage, and arterial ectasia 3. Varicella zoster virus vasculopathy should be suspected when patients present with a transient ischaemic attack or stroke, corroborated by MRI abnormalities following a recent episode of varicella zoster infection 3."