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Kidney Mass

One of the more common benign causes of kidney mass is the common or simple cyst. This is a fluid-filled pouch that develops in the outer lining of the kidney. A simple cyst is rarely a cause for concern and rarely interferes with kidney function. A very large cyst may need to be removed surgically. Most of the time, however, the cyst is simply left alone once it's been verified that that is the nature of the mass.

Polycystic Kidney Disease (PKD)

Although simple cysts are usually not a problem, some patients exhibit a genetic disorder producing multiple cysts on their kidneys, called polycystic kidney disease or PKD. With this condition, the kidney erupts in multiple cysts all over its surface. PKD can cause high blood pressure, anemia, and long-term damage to both the kidneys and the liver. It is a very serious disease and requires careful monitoring and aggressive treatment once it has been identified. The standard treatment for PKD that has progressed to the point where serious renal function decline is measured is a kidney transplant. Transplanted kidneys do not develop the symptoms of PKD.

Renal Adenoma

most common cause of a mass on the kidneys is renal adenoma, which is a benign tumor, usually small in size. In most cases renal adenoma produces no overt symptoms. It's unclear exactly what causes these tumors to form. Because of this uncertainty and the possibility that renal adenoma may evolve into kidney cancer, many doctors believe in removing adenomas surgically as soon as they are discovered, even though the tumor in itself is not dangerous.

Renal Onocytoma

A different and more dangerous type of benign (that is, non-cancerous) tumor, renal onocytoma is of
greater concern than renal adenoma because it can grow much larger, eventually physically pressing against and stressing bodily organs. As with renal adenoma, renal onocytoma may be precancerous, and many physicians recommend removing the growth proactively before it can develop into cancer.

Kidney Cancer

Obviously, the most serious and potentially life-threatening type of growth on the kidney is kidney cancer. Risk factors for developing kidney cancer include smoking, obesity, high blood pressure, viral hepatitis type C, exposure to certain hazardous chemicals over a long period. Treatment of kidney cancer can be difficult, as it does not respond well to chemotherapy or radiation therapy. The cancerous mass can be removed surgically before it spreads, but as this often involves removal of the kidney, it can be used only when the patient has both kidneys and the non-cancerous one is in good health. Other treatments include cryotherapy (freezing the cancerous cells) and radio frequency ablation (the use of high-frequency electrical current).

A mass on the kidneys can be a cancer, a cyst, a benign tumor, or an irregular swelling. Depending on the diagnosis, a mass on the kidneys can be anything from life-threatening to something of no serious medical concern. Because of the possibility that it represents a serious kidney illness, however, the appearance of a mass on the kidney always calls for exploration, monitoring, and further diagnostic procedures, followed by treatment as appropriate.

A mass on the kidneys is
usually asymptomatic. It is commonly discovered through the use of medical imaging technology such as ultrasound that is being conducted for some other purpose. In other words, the mass is most commonly discovered by accident. Upon discovering that a mass exists on the kidney, the physician will often order blood and urine tests at a urology lab, along with further visual scans, and in some cases a biopsy.



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Kidney Mass