patients with malignancy and AIDS.
Diagnosis and Misdiagnosis Diagnosis
Typical
lesions: crops of clustered vesicles surrounded by erythema, forming in a discontinuous band, with enlarged regional lymph nodes. The distribution of a signal dorsal nerve root. Obvious neuralgia
Misdiagnosis:
Pain ususlly precedes the eruption by 3 or 4 days, sometimes it may be misdiagnosed to other diseases, depending on different part. Appendicitis Cholecystitis Angina pectoris
Pathogen and Pathogenesis Pathogen
Varicella-Zoster virus (VZV) is characterized by neurotropism and dermatotropism.
Pathogenesis
VZV causes varicella in childhood , and establishes latency in sensory ganglia after the primary infection. VZV may replicate later in life, taking advantage of the decline in immune function, traveling down the sensory nerve into the skin , showing neuralgia and clunical manifestations