Fig. 1

Distribution of 282 patients with varicella zoster virus reactivation. Patients suffered from trigeminal nerve ganglionitis with segmental rash (V1, V1 + V2, V2, or V3), dorsal root ganglionitis with segmental rash (cervical, thoracic, lumbar, sacral region, or a combination of two segments), facial nerve palsy, CNS infection (encephalitis, meningitis, or myelitis), postherpetic neuralgia, and dorsal root ganglionitis with segmental rash and radiculitis with neuronal affection. In the first two groups (trigeminal and dorsal root ganglionitis), patients were included that presented with skin affection only. Patients with skin lesions combined with facial nerve palsy or CNS infection were included in the last two groups in order to avoid double identification