[Successful treatment of Darier disease with oral alitretinoin].

A 18-year-old man with severe Darier disease was treated with alitretinoin 30 mg daily. In addition he used topical keratolytic agents. The duration of treatment was 52 weeks. First significant improvement was noted within one week after starting treatment. Itchiness and erythema, particularly on the head and in the chest area, decreased spontaneously after starting the treatment. From week 4 on a remarkable reduction in scaling, fissures and hyperkeratosis was observed. After 52 weeks the patient was clear of disease, except for residual symptoms on his chest. Treatment was well tolerated without any side effects.