What is a renal infarction?

Kidney death. If the blood supply to the kidney is blocked or damaged (by clot or trauma), kidney tissue dies. Renal infarction can involve some or all of 1 or both kidneys. Since the kidneys are a vital organ and they don't regenerate if dead (they can recover from acute tubular necrosis, a separate condition) this is potentially very serious and warrants specialty evaluation/care.