Low Grade Penile Intraepithelial Neoplasia

**Semantic type:** Neoplastic Process

**Definition:** Penile intraepithelial neoplasia characterized by the proliferation of transformed basaloid cells that occupy the lower one third of the epithelial thickness.

**Synonyms:** - Grade 1 Penile Intraepithelial Neoplasia - Grade I PeIN - Grade I Penile Intraepithelial Neoplasia - Low Grade PeIN