Generalized idiopathic acanthosis nigricans treated with acitretin

Abstract
Generalized idiopathic acanthosis nigricans is a rare form of acanthosis nigricans. This form may be familial or nonfamilial and begins at birth or in early childhood. We report an 18‐year‐old boy with generalized idiopathic acanthosis nigricans who has no family history of acanthosis nigricans. The patient was treated with oral acitretin. Acitretin has been reported rarely as a therapeutic retinoid agent in the disease to date.

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