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Cancer is when cells in the body grow out of control. These cells can form a tumor or damaged tissue. If cancer cells grow in the kidney, it is called kidney cancer.…more

Thankfully, kidney tumors are rare in children, with some of them being highly treatable and usually curable. But would you know how to recognize this condition? The following information should help you spot this tumor long before it becomes a life-threatening issue.…more

The word renal means kidney. The words “tumor” and “mass” mean abnormal growths in the body. A renal mass, or tumor, is an abnormal growth in the kidney. Some renal masses are benign (not cancerous) and some are malignant (cancerous). …more

Urine contains many dissolved minerals and salts. When urine has high levels of minerals and salts, it can help to form stones. Kidney stones can start small but can grow larger in size, even filling the inner hollow structures of the kidney. Some stones stay in the kidney, and do not cause any problems. Sometimes, the kidney stone can travel down the ureter, the tube between the kidney and the bladder.…more

Pyelonephritis is a type of urinary tract infection where one or both kidneys become infected. They can be infected by bacteria or a virus. It can cause people to feel very sick and it requires treatment.…more

Ureteropelvic junction (UPJ) obstruction is when part of the kidney is blocked. Most often it is blocked at the renal pelvis. This is where the kidney attaches to one of the ureters (the tubes that carry urine to the bladder). The blockage slows or stops the flow of urine out of the kidney. Urine can then build up and damage the kidney. Sometimes surgery is needed to improve the flow of urine, other times the problem will improve on its own.…more

Most people are born with 2 kidneys. Factors can sometimes affect how the kidneys develop. An ectopic kidney is a kidney that does not grow in the proper location.…more

The ureter is a muscular tube that transfers urine from the kidney to the bladder. It is about 10 inches long, with the upper half in the belly and the lower half in the pelvic area.…more

Most people are born with 2 kidneys. But sometimes the kidneys form fused together. The information here will help you talk to your urologist if you or your child has this condition.…more

An abscess is a localized collection of pus in a hollow area formed by the breaking up of tissues. A renal abscess is one that is confined to the kidney and is caused either by bacteria from an infection traveling to the kidneys through the bloodstream or by a urinary tract infection traveling to the kidney and then spreading to the kidney tissue.…more

Sometimes kidneys are no longer able to filter and clean blood. This can cause unsafe levels of waste products to build up. This is known as kidney (or renal) failure. Unless it is treated, this can cause death.…more

Your kidneys are generally well protected by muscles of the back and rib cage but injuries can occur as a result of blunt or penetrating trauma. The kidney is the most common organ in the urinary tract to be injured by severe trauma. "Trauma" is injury caused by an external force that may be either blunt—such as a car accident—or penetrating—such as a gunshot wound.…more

Renovascular diseases are disorders primarily affecting the arteries of the kidneys and resulting in hypertension and kidney dysfunction.…more

A megaureter (“large ureter”) is when a ureter is wider than three-eighths of an inch. This can result from an abnormality of the ureter itself (primary) or from the bladder being blocked (secondary).…more

Most kidneys work well cleaning the blood from waste and keeping the body’s fluids and electrolytes in balance. A problem can occur during early kidney development in utero that results in an abnormal kidney (kidney dysplasia). Cysts, or fluid filled sacs, replace normal kidney tissue. As a result, kidney function can deteriorate before or after birth. Children with end stage kidney function will require blood-filtering treatment (kidney dialysis) until a kidney is available to be transplanted.…more

Most of us are born with two ureters, one from each kidney to drain urine into the bladder. Some (1 in 125 people), on the other hand, have two ureters draining a kidney. This is called "duplex anomaly" of the kidney. A "duplex anomaly" can be associated with a variety of conditions that can affect the kidney health. One of these conditions is referred to as "ureterocele."…more

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