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What Are The Causes Of Kidney Enlargement

2013-04-25 15:49

According to the patient’s age, gender, body weight and height, there is a certain size for the healthy kidneys. If the kidney’s size is much larger or smaller than the normal size, it is called renal atrophy or renal enlargement.

When the kidneys are greatly enlarged, renal functions will be affected because kidney enlargement usually means that renal structures are altered.

Effective treatment should be based on the underlying cause of kidney enlargement. There are a variety of factors and illness conditions can cause kidney enlargement. It can be unilateral kidney enlargement or bilateral kidney enlargement.

Acute nephritis. The kidneys can be slightly enlarged and it can be detected in B ultrasound. Timely and proper treatment can reverse renal damages and recover renal functions.

Hydronephrosis. The kidney size can be greatly larger than the normal size when there is obvious hydronephrosis. Patients can have palpable mass in their abdomen when the kidney is greatly enlarged. Urinary tract vein angiography and retrograde urethrography can confirm hydronephrosis.

Kidney infections. Infections and inflammations in the kidneys can cause extensive parenchymal lesions and kidney enlargement.

Polycystic kidney disease. 85% PKD cases are bilateral and that is to say both kidneys are filled with fluid-filled sacs. These renal cysts will experience slow but continuous enlargement and increase. They will oppress and replace normal renal tissues, alter renal structures and greatly enlarge the kidneys because these cysts require room.

Kidney tumors. Tumors can occur to all tissues in the kidneys. The tumor can be benign or malignant. Kidney enlargement is the main sign of kidney tumor and patients can feel masses in their back or abdomen.

Other causes of kidney enlargement include medullary sponge kidney and amyloid kidney disease, etc.

Kidney enlargement and kidney functions

When the kidneys are enlarged, the larger the kidney is, the less kidney function it will have. Therefore if effective treatment can be sought timely to make the kidneys smaller, recover renal structures, certain renal functions can be recovered.


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