Penile intraepithelial neoplasia

Abstract

BackgroundPenile cancer is a rare malignancy that affects 1 in 100 000 men. Penile intraepithelial neoplasia (PeIN) is a premalignant lesion that can affect any part of the penile surface. PeIN shows different degrees of dysplasia and is therefore classified into PeIN 1, 2, and 3. PeIN 3 is also kno