Nevus Comedonicus With Acne Vulgaris and Obesity

摘要

Nevus comedonicus is a rare hamartoma of the pilosebaceous unit, first described by Kofmann in 1895 [ ]. In most cases it is present at birth but may also develop later, usually before the age of 10 years, without racial or sexual preponderance. When appearing in adults, although rare, it is frequently associated with irritation or trauma [ ].