Frequency of melanocytic nevi in psoriatic patients is related to treatment and not to disease severity.

Background: Few data exist on the relationship between psoriasis and melanocytic lesions.

Objectives: We sought to investigate number of melanocytic nevi in psoriatic patients compared with control subjects and its relationship with disease severity and treatment.

Methods: We performed a prospective study in 189 psoriatic patients and 189 control subjects.