Bladder Cancer Support Group

Bladder cancer refers to any of several types of malignant growths of the urinary bladder. It is a disease in which abnormal cells multiply without control in the bladder. The bladder is a hollow, muscular organ that stores urine; it is located in the lower abdomen. The most common type of bladder cancer begins in cells lining the inside of the bladder (epithelial cells) and is called transitional cell carcinoma (TCC).

The greatest risk factor for bladder cancer is a genetic predisposition; it is also associated with smoking and occupational exposure to aniline-based dyes (such as in textile factories), as well as with petrol and other chemicals.

Bladder cancer may cause blood in the urine, pain during urination, frequent urination, or feeling the need to urinate without results. These signs and symptoms are not specific to bladder cancer, and are also caused by noncancerous conditions, including prostate infections and cystitis.

The treatment of bladder cancer depends on how deep the tumor invades into the bladder wall. Superficial tumors (those not entering the muscle layer) can be "shaved off" using an electrocautery device attached to a cystoscope. Immunotherapy in the form of BCG instillation is also used to treat and prevent the recurrance of superficial tumors. BCG immunotherapy is effective in up to 2/3 of the cases at this stage. Instillations of chemotherapy into the bladder can also be used to treat superficial disease.

Untreated, superficial tumors may gradually begin to infiltrate the muscular wall of the bladder. Tumors that infiltrate the bladder require more radical surgery where part or all of the bladder is removed (a cystectomy) and the urinary stream is diverted. In some cases, skilled surgeons can create a substitute bladder (a neobladder) from a segment of intestinal tissue, but this largely depends upon patient preference, renal function, and the site of the disease.

A combination of radiation and chemotherapy can also be used to treat invasive disease, and, in many cases, it is not yet known which is the better treatment - radiotherapy or radical ablative surgery.

In the United States, bladder cancer is the fourth most common type of cancer in men and the ninth most common cancer in women. More than 47,000 men and 16,000 women are diagnosed with bladder cancer each year.