Serpiginous hypopigmentation secondary to intra-articular corticosteroid injection.

Corticosteroids have been a mainstay of therapy for the treatment of many inflammatory diseases for well over 50 years. Cutaneous side effects of local corticosteroid therapy include striae, thinning of the skin, hypopigmentation, and atrophy, which are well known complications of this treatment modality.Herein, we present an unusual cutaneous adverse side effect rarely seen in intra-articular corticosteroid injections.