[Pseudo-acne fulminans caused by isotretinoin].

The use of isotretinoin in therapeutical dermatology has proved to be of great benefit in a series of cutaneous processes, especially in cystic and conglobate acne, where it produces excellent results with a dose of 1 mg/kg/daily. However, its use is not without complications, the majority of which are well known, and doubtlessly others will be brought to light. As for a case of pseudoacne fulminans, the possible etiopathogenic mechanisms of this type of reaction, are under discussion.