The document discusses carcinoma penis, including its epidemiology, risk factors, pathology, staging, investigations, and treatment options. Premalignant lesions like erythroplasia of Queyrat and balanitis xerotica obliterans are described. Treatment depends on the stage and includes circumcision for small tumors, local excision, glansectomy, Mohs micrographic surgery, and laser surgery to preserve the organ while wide local excision or penectomy may be needed for more advanced cases.