Rare complication of varicella-zoster virus infection: a case report of vernet syndrome in clinical and radiological evidence

Vernet syndrome is a neurological disorder rarely seen in association with varicella-zoster virus (VZV) infection in ear. This report presents a 61-year-old man demonstrating neuropathy of cranial nerve XI, X, and XI. Subsequent serological and radiological examinations revealed Vernet syndrome due to VZV infection, a rare complication of a common infection. Notably, the current report features in the resolutions of inflammatory processes around the right jugular foramen evidenced by serial magnetic resonance (MR) images. This report highlights the potential values of radiological assessment in VZV-induced Vernet syndrome regarding the diagnosis and clinical follow-up. In addition, prompt clinical intervention can lead to favorable outcomes in VZV-induced Vernet syndrome.