Kidney Stone Pictures Slideshow
Reviewed by Melissa Conrad Stöppler, MD on Thursday, July 17, 2008
A kidney stone is a hard mass developed from crystals that separate from the urine and build up on the inner surfaces of the kidney.
The number of people in the United States with kidney stones has been increasing over the past 30 years.
Symptoms and signs of a kidney stone include excruciating, cramping pain in the lower back and/or side, groin, or abdomen as well as blood in the urine.
A helical CT scan without contrast material is the most common test to detect stones or obstruction within the urinary tract.
For kidney stones that do not pass on their own, a shock wave procedure called lithotripsy is often used to break up a large stone into smaller pieces to pass.
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