Renal papillary necrosis MRI

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Nasrin Nikravangolsefid, MD-MPH [2]

On Magnetic resonance urography, renal papillary necrosis is characterized by classic signs of papillary necrosis including candle-flame appearance, Golf ball on a tee sign, lobster claw sign and clubbing of calyces.

• MRI can be used as a helpful alternative imaging test in children suspected renal papillary necrosis.
• On Magnetic resonance urography, renal papillary necrosis is characterized by sloughed papillary tissue in the major and minor calyces leading to the classic signs of papillary necrosis including^{[1] [2]}:
  • candle-flame appearance
  • Golf ball on a tee sign
  • lobster claw sign
  • clubbing of calyces