Pseudolymphoma due to Hair Dye on Background of Chronic Actinic Dermatitis Responding to Intra-lesional Triamcinolone

Cutaneous pseudolymphoma refers to a heterogenous group of benign T-cell or B-cell lymphoproliferative processes that mimic cutaneous lymphoma clinically and sometimes histologically. The causes of cutaneous pseudolymphoma are diverse, including lymphomatoid drug eruptions, lymphomatoid contact dermatitis, arthropod-bite reactions, chronic actinic dermatitis (CAD). Here we describe a case of pseudolymphoma due to hair dye on background of CAD.