SCOTT CAMAZINE / SCIENCE PHOTO LIBRARY SCOTT CAMAZINE / SCIENCE PHOTO LIBRARY
Gallstone. Coloured X-ray of a gallstone (orange) in the gall bladder of an 82-year-old female patient. This X-ray is of the abdominal region, showing the bones of the bottom of the ribcage at top, and the pelvis at 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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