How is renal osteodystrophy differentiated from beta-2-microglobulin (beta-2m) amyloidosis?

Updated: Nov 14, 2019
  • Author: Anita Basu, MD, FACP; Chief Editor: Vecihi Batuman, MD, FASN  more...
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Answer

Dialysis-related amyloidosis (DRA) bone lesions differ from renal osteodystrophy in that in DRA, the presence of the amyloid deposits interferes with normal bone-tissue dynamics, while in renal osteodystrophy, the abnormality is in the underlying metabolic process itself, causing bone turnover to be either increased or decreased.

In the case of pathologic fractures in patients on dialysis, it is essential that DRA be distinguished from renal osteodystrophy, because there are implications for healing.


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