Pigmentatio reticularis faciei et colli with multiple epithelial cysts.

Brown-black reticular pigmentation developed on the face and neck of a man. This was associated with severe seborrhea and the formation of multiple epithelial cysts on the trunk. We propose the term pigmentatio reticularis faciei et colli with multiple epithelial cysts as a suitable title for this disorder, and we hypothesize that these skin changes in this disorder are of nevoid origin. One similar case has been reported as "lentiginosis senilis" in the Japanese literature.