Abstract
The Eutectic Mixture of Local Anesthetics (EMLA cream) is a topical anesthetic used for providing pain relief in patients undergoing superficial surgical procedures. Cutaneous side-effects have been reported rarely. We present a case of irritant contact dermatitis induced by EMLA cream in a 6-year-old boy with Wiskott-Aldrich syndrome. Our patient showed clinically a well circumscribed patch corresponding to the site of application of the topical anesthetic. Histopathology showed confluent necrosis of keratinocytes in the upper epidermis, a mixed inflammatory infiltrate with priminent neutrophils in the upper dermis, and focal signs of interface changes including basal cell vacuolization and subepidermal cleft formation. Graft-vs.-host-disease (GVHD), necrolytic migratory erythema, dermatitis enteropathica and pellagra should be considered in the histopathologic differential diagnosis of acute contact dermatitis caused by EMLA.
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