Classification of and the latest photoelectric therapy for epidermal nevi

An epidermal nevus (EN) is a common disease of various types, including verrucous EN, nevus sebaceous, inflammatory linear verrucous EN, Becker nevus, smooth muscle hamartoma, and nevus comedonicus. EN syndrome is a serious and difficult-to-treat syndrome that is complicated by two or more abnormal organs or systems. To date, the mechanism of an EN is still unclear, and the therapies remain unsatisfactory. The most frequently used treatments are surgery and laser therapy. Several drugs have also been tested. An EN requires more attention, and further research is needed to provide appropriate and effective treatments for each patient.