Renal amyloidosis

Renal amyloidosis is rare as an isolated entity but can be associated with systemic amyloidosis

Renal involvement is estimated to affect a large proportion of the patients with systemic amyloidosis, with about half of them dying of renal failure complications 8

It usually manifests as nephrotic syndrome:

Imaging findings tend to be non-specific and are not always present, but smaller and thinned cortex kidneys are seen in about 50% of patients with systemic amyloidosis 3,8. A note is made that, in acute stages, the kidneys may be enlarged. Rarely, amyloid deposition may create focal parenchymal mass lesions 3

  • increased echogenicity
  • prominent medullary pyramids
  • heterogeneous contrast enhancement
  • amorphous renal calcifications 3
  • T2: affected areas are hypointense
  • irregular narrowing and tortuosity of interlobar arteries
  • non-visualization of cortical arterial branches

Article information

rID: 25651
System: Urogenital
Tag: cases, cases
Synonyms or Alternate Spellings:
  • Amyloidosis of kidneys
  • Amylodosis of kidney
  • Amylodosis affecting the kidney
  • Amylodosis affecting the kidneys

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