General Information The penis is the external male organ of urination and coitus Cancers of the penis if found and treated in the early stages have a five year survival rate of 85-90% If cancer has spread to lymph nodes in the groin the five year survival rate is 30-40% Any lesion on the penis should be checked by a doctor Rare in United States - 0.2% of all cancers Premalignant: Erythroplasia of Queyrat - squamous cell carcinoma in situ of penis.