Table 1.

WHO classification and distribution of penile carcinomas (%).

Non-HPV-related penile SCCs	HPV-related penile SCCs	Other
SCC	Basaloid carcinoma (7%)	Unclassified carcinoma (2%)
Usual carcinoma (44%)	Papillary-basaloid (rare)
Pseudohyperplastic carcinoma (3%)	Warty carcinoma (7%)
Pseudoglandular carcinoma	Warty-basaloid carcinoma (4%)
Verrucous carcinoma (3%)	Clear cell carcinoma (rare)
Pure verrucous carcinoma (rare)	Lymphoepithelioma-like carcinoma (rare)
Carcinoma cuniculatum (rare)
Papilary carcinoma, NOS (2%)
Adenosquamous carcinoma (rare)
Sarcomatoid squamous carcinoma (7%)
Mixed carcinoma (21%)

HPV, human papillomavirus; NOS, not otherwise specified; SCC, squamous cell carcinoma; WHO, World Health Organization.