Author:
Chopra Rebaika,Santana de Roberts Rosalba,Batal Ibrahim,Batra Sachin,Jim Belinda
Abstract
Kidney tubular disorders due to monoclonal immunoglobulin light chains are common manifestations of B-cell neoplasm. Cast nephropathy (CN) is the most frequent type of these disorders and may present with acute kidney injury (AKI) due to the presence of excess light chains in the distal tubules. Light chain proximal tubulopathy (LCPT) is an uncommon form of renal disease and may present as Fanconi syndrome due to proximal tubular cell damage by intracellular deposition of light chains. The concomitant disorder of both CN and LCPT is rare given the inherent differences in the biochemical properties of the immunoglobulin light chains of each disorder. We report a 64-year-old man who presented with AKI and Fanconi syndrome who was discovered to have both CN and LCPT due to the underlying disorder of monoclonal gammopathy of renal significance and who has responded favourably with conventional chemotherapy. We also review the existing literature on this interesting subject.
Cited by
3 articles.
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