Renal haemosiderosis

Renal haemosiderosis results from accumulation of haemosiderin in the kidneys. It is usually considered a benign and incidental radiologic finding and rarely results in clinically apparent renal dysfunction. 

Pathology

Renal haemosiderosis is a known complication of the following conditions:

  • chronic intravascular hemolytic states such as haemolytic anaemias like sickle cell anemia and thalassemia 1,3
  • paroxysmal nocturnal hemoglobinuria (PNH)
  • mechanical hemolysis from prosthetic cardiac valve 

Radiographic features

CT

No focal abnormalities usually seen on CT.

MRI

The kidneys exhibit abnormally low renal cortical signal in T1W and T2W sequences on MRI.

Differential diagnosis

General imaging differential considerations include

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Article information

rID: 23368
System: Urogenital
Synonyms or Alternate Spellings:
  • Renal hemosiderosis

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