Acne Keloidalis‐like Lesions on the Scalp Associated with Antiepileptic Drugs

Abstract
A man developed acne keloidalis‐like lesions in the scalp during treatment with diphenylhydantoin and car‐bamazepine for epilepsy. These drugs were suspected to play a role in the pathogenesis of this skin disease in an unusual location, based on clinical evidence and on the in vitro test, mast cell degranulation (MCD).