There are two types of renal cysts. The first one is a single or several liquid filled sacs in the kidney, and the cause is unknown. The other is polycystic kidney and it is a hereditary disease. In the case of polycystic kidney disease, there are many different sizes of cysts in both sides of the kidney, which can be accompanied by polycystic liver.
What are the symptoms?
A single cyst has no symptoms and only develops symptoms when it becomes very large and causes back and back pain. When a single cyst occurs, sometimes you can touch your abdomen with a soft block. Polycystic kidney disease occasionally causes hematuria (bloody urine), or recurrent episodes of pyelonephritis. In most cases, polycystic kidney disease is asymptomatic, unless the cyst finally replaced too much kidney tissue, triggering chronic renal failure. Symptoms begin to occur when the disease reaches the point of chronic renal failure.
Kidney cysts are usually found on physical examination. Many kidney cysts do not know they have the disease. In the United States, about 2% of chronic renal failure is caused by renal cysts.
The harm of simple renal cysts is likely to develop into malignant cysts, but this is rare, too large cysts can be pressured to normal kidney tissue, polycystic kidney disease may lead to chronic renal failure.
How to treat?
Painless and benign renal cyst does not require treatment, but if the cyst becomes larger, causing pain, diameter greater than 4 cm need to be treated. The interventional therapy of renal cysts is simple and safe. It is carried out by ultrasound guided puncture and extracting the fluid, and then injecting anhydrous ethanol. Cure rate of more than 90%, patients with polycystic kidney disease, if there is intracapsular bleeding caused by pain, or a large cyst pain appeared, but also pumping decompression relieve symptoms. If found early in the cyst, and from this period of regular examination or treatment, can effectively prevent or delay the progressive damage to the kidneys.
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