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Bladder Cancer

What is bladder cancer?

Bladder cancer is the abnormal growth of cells that make up the bladder.

How common is bladder cancer?

Bladder cancer is responsible for approximately 3% of all malignancies diagnosed in Australia each year. It is more common in men than women and typically affects those over 60 years of age. Smoking is the biggest risk factor.

What are the symptoms of bladder cancer?

Bladder cancer at an early stage of growth may not produce any noticeable signs or symptoms. Common signs of bladder cancer include haematuria (blood in the urine that looks red or rusty), which is usually painless and may appear only from time to time over a few months, a burning sensation during urination and a need to urinate often.

When bladder cancer causes noticeable symptoms, they are usually related to the irritation brought about by tumour growth. Irritable symptoms include urination that is frequent, urgent, painful or difficult.

If a bladder tumour blocks a ureter (tubes that pass urine out of the kidneys, into the bladder), patients may experience pain in the side of the body between the ribs and the top of the hip. In some cases, tumour growth may constrict the urethra (the tube that passes urine from the bladder out of the body) and slow the flow of the urine. Bladder cancers may also shed pieces of dead tissue, fragments of other tissue and other forms of tumour-related matter that are then passed out with the urine.

If the tumour has spread beyond the bladder to the surrounding tissue, you may experience pelvic pain, bone pain at the site of the new cancer, leg swelling (oedema) due to the involvement of lymph nodes, loss of weight and fatigue. Anaemia and high blood levels of urea and other metabolic by-products, often due to urinary tract obstruction, may be further indications of late-stage bladder cancer.

Since such symptoms are also caused by bacterial infections and kidney stones, it is essential to see your doctor for an accurate diagnosis.

How is bladder cancer diagnosed?

When you experience symptoms of bladder cancer, your doctor will conduct physical examinations in order to formulate an accurate diagnosis. Other tests such as cystoscopy (thin lighted tube with camera is inserted up the bladderto detect abnormalities),biopsy (sample of tissue is removed to examine in the lab) and intravenouspyelogram (dye is injected and traced with CT).

How is bladder cancer treated?

Bladder cancer can be treated withsurgery, chemotherapy and radiation therapy. A number of treatments may be used in conjunction with each other.The choice of treatments depends on a number of factors, including age, general health and the extent and stage of the tumour. Discuss this with your doctor to ascertain the most appropriate course of treatment for you.

What are the surgical treatments indicated for bladder cancer?

Bladder cancers that have grown into surrounding tissues such as muscle need surgical management. There are many surgical treatment options. Some of these include:

  • Radical cystectomy: For women, a standard form of surgery is a radical cystectomy, which involves removing the entire bladder and associated tissues, with pelvic lymphadenectomy (removal of the lymph nodes within the hip cavity). Radical cystectomy in women includes removal of the uterus, fallopian tubes, ovaries, anterior vaginal wall (the front of the birth canal) and urethra.
  • Radical Cysto-prostatectomy: In men, a common surgical procedure is cysto-prostatectomy, which involves the removal of the bladder and prostate, with pelvic lymphadenectomy.
  • Transurethral resection of the bladder tumour (TURBT): This procedure involves the insertion of a thin tube through the urethra and up into the bladder. The surgeon can then remove the tumour without the need for a large external excision.
  • Urinary diversion:Urinary diversion is a method where an alternate means of urine waste disposal is created when the bladder is removed. The most common diversion is the ileal conduit, which involves taking a piece of bowel, forming a pipe and inserting it where the bladder once was. The conduit then carries the urine from the ureters out onto the skin of the abdomen where the conduit ends in a stoma (a small opening). Urine is then emptied into a plastic bag attached to the skin, where it can be emptied at various intervals.

Other forms of diversion involve the formation of an internal pouch made out of part of the bowel. The pouch has an inbuilt valve so that urine collects inside and does not leak through the stoma. When it needs emptying, a small plastic tube called a catheter can be passed through the stoma and the valve, allowing urine to flow out.

What is intra-vesical treatment?

Intra-vesical treatment involves filling the bladder with chemotherapy or immunotherapy (BCG) to treat any residual tumour cells following surgery.

Chemotherapy drugs, usually mitomycin, are placed directly into the bladder in order to prevent the tumour invading the deeper layers of the bladder wall or recurring.

Immunotherapy, works by activating your body’s immune system to help fight cancer cells. One immunotherapy drug used to treat bladder cancer is bacille Calmette-Guerin (BCG), which is a bacterium used in tuberculosis vaccines. Immunotherapy drugs often cause flu-like symptoms and can irritate your bladder.

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