STEVE GSCHMEISSNER / SCIENCE PHOTO LIBRARY STEVE GSCHMEISSNER / SCIENCE PHOTO LIBRARY
Polycystic kidney disease. Coloured scanning electron micrograph (SEM) of a kidney affected by polycystic kidney disease (PKD). This is a fluid filled cyst. PKD is characterised by the growth of numerous cysts in the kidneys. Eventually they will cause the kidneys to fail (end-stage renal disease), requiring dialysis or transplantation.
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