<unk>  is a rare type of cancer originating from the<unk>  The incidence is approximately 0.43 per 100,000 in the United states for men, and approximately 0.15 per 100,000 for women. Types of<unk>  include transitional cell carcinoma, squamous cell carcinoma, and adenocarcinoma. It may be caused by an infection of human papillomavirus.<unk>  must be differentiated from bladder cancer, cervical cancer, bladder stones,<unk>  stones, cystitis, neurogenic bladder, and urethritis. Common risk factors in the development of<unk>  are history of bladder cancer, urinary tract infections, and sexually transmitted diseases. Symptoms of<unk>  include hematuria, urinary hesitancy, frequent urination, incontinence,  swelling in the groin, and a lump or thickness in the perineum or penis. The prognosis varies with the depth of invasion, anatomical location, size, and stage of the tumor. The predominant therapy for<unk>  is surgical resection. Adjunctive chemotherapy or radiation therapy may be required.
Urethral cancer
Bladder cancer
Urethral diverticulum
Ureteral cancer
Cystitis
Neurogenic bladder
Hydrocele
Urethral syndrome