SOVEREIGN / ISM / SCIENCE PHOTO LIBRARY SOVEREIGN / ISM / SCIENCE PHOTO LIBRARY
Swollen kidneys. X-ray of the abdomen of a 50 year old man with a swollen kidneys (top left and right) due to hydronephrosis. The bladder is at bottom centre. The renal pelvises of both kidneys have become swollen with urine due to an obstruction to normal flow. The obstruction may be due to kidney stones, kidney disease, a deformity in the ureter (the tube that carries urine from the kidney to the bladder), or a mass pressing on the ureter. If left untreated the pressure can lead to kidney failure. Treatment is of the underlying cause.
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