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info - A922 kidney Angiomyolipoma General facts of...

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General facts of benign (noncancerous) Kidney Tumors http://www.cancer.org About Kidneys The kidneys are paired bean-shaped organs, each weighing about 4-5 ounces, that are fixed to the upper back wall of the abdominal cavity. One kidney is just to the left and the other just to the right of the backbone. Both are protected by the lower ribcage. The kidneys' main job is to filter the blood and rid the body of excess water, salt, and waste products. The filtered waste products are concentrated into urine. Urine leaves the kidneys through long slender tubes called ureters that connect to the bladder. Urine flows down the ureters into the bladder where it is stored until urination. Although our kidneys are important, we actually need less than one complete kidney to do all of the important functions discussed above. Tens of thousands of people in the United States are living normal healthy lives with just one kidney. Some people may not have any working kidneys at all, and survive with the help of a medical procedure called dialysis. Dialysis uses a
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