Granuloma annulare (GA) is a common lesion of any age group, and is especially common among those aged 30 years or less. Its etiology is unknown; it has been reported after tuberculin skin testing, insect bites, sun exposure, and trauma.1 Here we describe a patient in whom multiple GA lesions developed at the sites of healing, individual herpes zoster lesions.
Report of a Case
An asymptomatic eruption of grouped, small, umbilicated, clear and cloudy vesicles on an erythematous base developed in the case of a 65-year-old man. The eruption was located on the right neck and shoulder in a C4 dermatomal distribution. A clinical diagnosis of herpes zoster was made, and symptomatic treatment was begun.Results of routine laboratory tests, including an intermediate-strength PPD skin test, were normal or negative.Nine days later, the vesicles were crusting, and the patient experienced increasing aspirin-resistant neuralgic pain. A short course of
Guill MA, Goette DK. Granuloma Annulare at Sites of Healing Herpes Zoster. Arch Dermatol. 1978;114(9):1383. doi:10.1001/archderm.1978.01640210074023