Confluent and reticulated papillomatosis of Gougerot and Carteaud.

Confluent and reticulated papillomatosis is a rarely reported dermatosis of unknown origin. It is similar to nummular and confluent papillomatosis; punctate, pigmented verrucose papillomatosis; acanthosis nigricans; pseudoacanthosis nigricans; benign acanthosis nigricans; pseudoatrophoderma colli; tinea versicolor; Darier's disease; epidermodysplasia verruciformis; and verruca plana. Treatment may be temporarily successful, but the lesions usually recur within a period of months.