Sections showed an exophytic tumor composed of islands of atypical squamous cells. Superficially, there were well-defined islands of well-differentiated squamous epithelium, but a more infiltrative pattern was seen at the base of the lesion. A surrounding chronic inflammatory infiltrate was present. No evidence of vascular invasion was seen. The adjacent squamous epithelium showed marked inflammation with cytological atypia amounting to moderate dysplasia.
The patient's postoperative recovery was uncomplicated, and there was no evidence of local recurrence or metastatic disease after 18 months.
A Papillary Lesion on the Foreskin. Arch Dermatol. 2001;137(6):815-820. doi: