SCOTT CAMAZINE / SCIENCE PHOTO LIBRARY SCOTT CAMAZINE / SCIENCE PHOTO LIBRARY
Gallstones. Coloured X-ray of gallstones (upper left) in the gall bladder of a 32-year-old female patient. The spine is at right and the top of the pelvis bone is at the bottom. Gallstones are hard deposits of cholesterol or bile salts that build up in the gall bladder, and may cause acute pain. The gall bladder stores bile, a digestive secretion from the liver, before passing it to the digestive tract. Gallstones can be treated with ultrasound to break up the stones, surgical removal, or the stones may be dissolved by a chemical.
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