Kidney & Bladder Cancer

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WHAT IS KIDNEY & BLADDER CANCER?

Kidneys & bladder are the major organs of the urinary tract, along with the ureters and urethra. The kidneys main function is to filter blood to remove impurities, excess minerals, salts, and water, thus producing urine. Urine is then stored in the bladder – a hollow organ in the pelvis – before it leaves the body during urination.

Cancer in the kidney is also known as renal cancer. The most common type of kidney cancer is renal cell carcinoma (RCC) which develops in the proximal renal tubules that make up of the kidney’s filtration system. According to the National Cancer Registry Report 2007-2011, kidney cancer accounts for 1.28% cancer cases in Malaysia.

Symptoms
Factors

Due to the correlation between the kidneys and bladder, both types of cancer share similar signs and symptoms, such as:

Blood in urine
Pain or burning sensation during urination
Feeling the need to urinate many times
Lower back pain on 1 side of the body

People with kidney cancer may also experience these symptoms:

Swelling of ankles and legs
A mass or lump on the side or back
Unexplained weight loss
Loss of appetite
For men, the cluster of enlarged veins, known as varicocele, around a testicle may present if the tumour has grown larger

The actual cause of kidney & bladder cancer is not known. However, a few risk factors are known to be associated with the development of kidney and bladder cancer, such as:

Obesity
High blood pressure
Overuse of certain medications (diuretics and analgesic pills like aspirin & ibuprofen)
Smoking tobacco (doubles the risk of developing cancer)
Genetic predisposal (family history)
Chronic kidney disease
Workplace exposure
- Chemicals like aromatic amines, which are sometimes used in the dye industry can cause bladder cancer
- Substances like cadmium (a type of metal), herbicides, and organic solvents, particularly trichloroethylene

Symptoms

Due to the correlation between the kidneys and bladder, both types of cancer share similar signs and symptoms, such as:

Blood in urine
Pain or burning sensation during urination
Feeling the need to urinate many times
Lower back pain on 1 side of the body

People with kidney cancer may also experience these symptoms:

Swelling of ankles and legs
A mass or lump on the side or back
Unexplained weight loss
Loss of appetite
For men, the cluster of enlarged veins, known as varicocele, around a testicle may present if the tumour has grown larger

Factors

The actual cause of kidney & bladder cancer is not known. However, a few risk factors are known to be associated with the development of kidney and bladder cancer, such as:

Obesity
High blood pressure
Overuse of certain medications (diuretics and analgesic pills like aspirin & ibuprofen)
Smoking tobacco (doubles the risk of developing cancer)
Genetic predisposal (family history)
Chronic kidney disease
Workplace exposure
- Chemicals like aromatic amines, which are sometimes used in the dye industry can cause bladder cancer
- Substances like cadmium (a type of metal), herbicides, and organic solvents, particularly trichloroethylene

Diagnosis

Blood and urine test

Would be the preliminary diagnostic procedure to check for the number of red blood cells and to check on blood in urine, bacteria or cancer cells.

Biopsy

To obtain tumour cells for examination under a microscope.

Cystoscopy

Is a procedure that allows your doctor to examine the lining of your bladder and the tube that carries urine out of your body. A cystoscope equipped with a lens is inserted into your urethra and slowly advanced into your bladder.

Staging of Kidney & Bladder Cancer

Staging of cancer helps the doctor determine the treatment course and the diagram below explains the meaning behind the numbering of cancer staging

Stage 0 – Early cancer that is only present on the surface of the inner lining of the bladder. The cancer does not invade the muscle or connective tissue of the bladder wall.
Stage I – The cancer has grown through the inner lining of the bladder and into the lamina propria. It has not yet spread to the thick muscle layer of the bladder wall or to the lymph nodes or other organs.
Stage II – The cancer has spread into the thick muscle layer of the bladder wall. It is also called invasive cancer or muscle-invasive cancer. The tumor has not yet reached the fatty tissue surrounding the bladder and has not spread to the lymph nodes or other organs.
Stage III – The cancer has spread through the muscle wall into the fatty tissue surrounding the bladder (perivesical tissue) or to the prostate. Alternatively, the cancer has spread to the surrounding lymph nodes.
Stage IV – The tumor has spread into the abdominal wall, or the cancer has spread to lymph nodes outside the pelvis or to other parts of the body.

Treatment

Treatment course will be determined by the oncologist upon obtaining the results of the diagnostic. Depending on the staging of cancer, the location and size of the tumour, treatment options may vary from case to case and inclusive of:

Kidney & Bladder Cancer

WHAT IS KIDNEY & BLADDER CANCER?

Symptoms

Factors

Diagnosis

Blood and urine test

Biopsy

Cystoscopy

Staging of Kidney & Bladder Cancer

Treatment

Surgery

Targeted Therapy

Radiotherapy

Chemotherapy

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