Nevus comedonicus syndrome is one of the epidermal nevus syndromes, but is extremely rare. There is no gender or racial difference in the prevalence of this condition. The prevalence ranges from 1 in ...
A 19-year-old man presented with a congenital skin lesion on the left clavicular region. Closely arranged, dilated follicular openings with keratinous plugs resembling classic comedones were ...