Granuloma Annulare-Like Granulomatous Reaction to Red Tattoo Pigment.

Cutaneous reactions to tattoos can be attributed either to trauma or to the exogenous pigment introduced into the skin. Red pigment is associated with a high sensitizing potential and is the most frequently implicated pigment inducing various types of histological reactions. Herein, we describe a patient with red tattoo pigment-induced granulomatous dermatitis that histologically revealed a very rare granuloma annulare-like reaction.