We report the case of a newly-diagnosed HIV-positive patient with varicella zoster virus aneurysmal vasculopathy confirmed on intrathecal antibody testing, despite a negative Cerebrospinal fluid (CSF) Varicella Zoster Virus (VZV) Polymerase Chain Reaction (PCR). This highlights the importance of prompt treatment with antiviral and steroid therapy in the presence of clinical or radiological suspicion whilst awaiting further confirmatory testing.
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