Bladder cancer develops in the tissues of the urinary bladder, the organ that stores pee. According to the National Institutes of Health, the condition is diagnosed annually in around 45,000 men and 17,000 women.What Exactly Is Bladder Cancer?The bladder, a hollow organ located in the lower abdomen, acts as a receptacle for urine until it is expelled from the body via the urethra.Different forms of bladder cancer exist. The cancer cell type can be transitional cell carcinoma, squamous cell carcinoma, or adenocarcinoma, all of which are called for the types of cells that line the bladder wall where the cancer begins.•More than 90 percent of bladder tumors begin in the transitional cells that line the inner surface of the bladder wall. Cancers that begin in the cells lining the bladder can invading the deeper layers of the bladder (called the lamina propria), the thick muscle layer of the bladder, or the fatty tissues that surround the bladder.• Squamous cells are thin, flat cells that line the urethra and can develop in the bladder during prolonged bouts of inflammation or irritation. Squamous cell carcinoma accounts for around 5% of bladder malignancies.• Adenocarcinoma is an extremely uncommon kind of bladder cancer that develops in glandular (secretory) cells of the bladder lining. Approximately 1% to 2% of bladder tumors are adenocarcinoma.
