MR GORDON MUIR / CONSULTANT UROLOGICAL SURGEON / RENAISSANCE HEALTHCARE LTD / SCIENCE PHOTO LIBRARY MR GORDON MUIR / CONSULTANT UROLOGICAL SURGEON / RENAISSANCE HEALTHCARE LTD / SCIENCE PHOTO LIBRARY
Kidney stone diagnosis. Endoscope image of a catheter being inserted into the ureter, the tube that carries urine from a kidney to the bladder, viewed from the bladder. The catheter will be used to introduce a radio-opaque contrast medium into the kidney. The patient's abdomen will then be X- rayed and the contrast medium will highlight any kidney stones that are present. Kidney stones are formed when mineral salts, most often involving calcium, accumulate in the inner surfaces of the kidney. As they grow they may block the flow of urine out of the kidney, causing extreme pain. Most stones are small enough to be passed, but larger stones need to be treated. They may be removed by surgery or using non-invasive means.
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