A case of herpes zoster duplex unilateralis with herpes zoster generalisatus

Herpes zoster, involving noncontiguous dermatomes, is a rare disease. This unique presentation has been referred to as zoster duplex unilateralis or bilateralis, depending on whether one or both sides of the body are involved. A 76-year-old man, who had been treated for chronic obstructive pulmonary disease, presented with painful grouped vesicles on the right forehead and the right flank accompanied with generalized crusted papulovesicles. Tzanck smear showed multinucleated giant cells, and the histopathologic findings were consistent with herpes viral infection. We report a rare case of herpes zoster duplex unilateralis with herpes zoster generalisatus.