Interstitial granulomatous dermatitis with arthritis

Interstitial granulomatous dermatitis with arthritis is an uncommon disorder. In its original description, the presence of linear inflammatory indurations on the lateral aspects of the trunk (the rope sign) in association with arthritis were considered the pathognomonic clinical features. Later cases presenting with plaques and papules have been reported. Herein we describe a case of interstitial granulomatous dermatitis with arthritis without the rope sign. The present case supports the idea that interstitial granulomatous dermatitis with arthritis may have variable clinical appearances.