There are two main types of kidney tumors; both are malignant, but only one occurs in adults. The most common type is hypernephroma, a tumor that is created due to the uncontrolled multiplication of abnormal cells.
Tumor grows and sticks into healthy kidney tissue; however, since the tumor affects the kidney function only at a very late stage, there is only a small chance of renal insufficiency. A presence of tumor is commonly manifested by general symptoms such as persistent fever, lack of appetite, and weight loss. Vomiting and moderate, general pain in the abdominal cavity occurs, and urine may be red or blurry due to bleeding from tumor.
The main danger comes from the possibility of tumor cells spreading through the bloodstream to other parts of the body, especially to the lungs or bones. However, hypernephroma does not spread as fast as many other cancers, and responds better to treatment.
What to do?
If you notice symptoms indicating the possibility of a kidney tumor, especially if your urine is reddish or abnormally blurred, contact a doctor who will probably send your urine sample to a laboratory analysis. If your doctor suspects you have a tumor, you will need to perform a series of diagnostic tests, e.g. intravenous pyelogram (IVP), ultrasound examination and renal arteriography. You will need to stay in the hospital while performing all these tests.
If the examination indicates the presence of hypernephroma, an operative procedure (i.e. removal of the affected kidney) will be required; however, one healthy kidney can compensate for the lack of the other. Your doctor will also recommend radiotherapy as well as cytostatic therapy (anti-cancer drugs) to destroy any remaining cancer cells (if there are any). After the treatment, you will need to go to regular control (up to five years) to make sure the cancer does not reappear.