Comedones Appearing after Herpes Zoster / 대한피부과학회지

ABSTRACT

Isotopic response is the occurrence of a new skin disorder at the site of another, unrelated, and already healed skin disease. Various diseases have been reported in terms of isotopic response associated with herpes zoster, but the development of comedones is uncommon. We report a case of comedones that had developed on the site previously affected by herpes zoster in a 59-year-old male, which is thought to be an isotopic response. Eight months ago, he visited with herpes zoster lesions on the left upper eyelid, forehead and scalp(dermatome cranial nerve V1). He had grouped and discrete, slightly elevated, skin colored papules with dark, firm hyperkeratotic plug on the healed site of herpes zoster.