Is Granuloma Annulare a Seasonal Dermatosis

Granuloma Annulare (GA) is a chronic granulomatous disorder of unknown etiology. Local forms of GA tend to occur on sunexposed extremities, and variants of GA induced by sun exposure or localized to sun-damaged skin have been described [1-4]. Similarly, disseminated forms of GA that relapse following sun exposure are known, although drug induced variants including vaccinal and interstitial GA have been described [4]. Actinic granuloma of O’Brien, which is closely related to GA and considered to be a form of GA by some experts, also occurs exclusively on sun-damaged skin [5].