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| CASE REPORT |
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| Year : 2020 |
Volume
: 31 | Issue : 2 | Page
: 508-514 |
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A case of renal and splenic LECT 2 amyloidosis: A recently recognized cause of renal and systemic amyloidosis
Michael Shye1, Anthony Sisk2, Carl Schulze1, Marina Barsoum1, Mira Mikhail1, Farid Arman1, Anjay Rastogi1, Ramy M Hanna3
1 Department of Medicine, Division of Nephrology, UCLA David Geffen School of Medicine, Los Angeles, CA, USA
2 Department of Pathology, Division of Renal Pathology, UCLA David Geffen School of Medicine, Los Angeles, CA, USA
3 Department of Medicine, Division of Nephrology, UCLA David Geffen School of Medicine, Los Angeles; Department of Medicine, Division of Nephrology, University of California, Irvine School of Medicine, Irvine, CA, USA
Correspondence Address:
Ramy M Hanna
Department of Medicine, Division of Nephrology, UCLA David Geffen School of Medicine, Los Angeles, CA
USA
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DOI: 10.4103/1319-2442.284027 PMID: 32394925 
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Amyloidosis has traditionally been of a few defined varieties, most commonly including light-chain amyloidosis (AL amyloidosis) and secondary amyloidosis due to chronic inflammation (AA amyloidosis). Apolipoprotein A-I/A-II cystatin C, gelsolin, lysozyme, fibrinogen alpha chain, beta 2 microglobulin, and transthyretin familial amyloidosis represent rarer but reported varieties. Ten years ago, the first reports linked leukocyte chemotactic factor 2 (LECT2) amyloidosis as a pathological agent identified as a novel class of amyloid-generating protein. Epidemiology suggested that this was a new cause of amyloidosis that is especially common in Hispanic patients and somewhat common among patients from the Middle East-North Africa (MENA) region. We report a case of splenic and renal LECT 2 amyloidosis in a 62-year- old Hispanic male with diabetes mellitus. After an unremarkable serological workup, LECT 2 amyloidosis was diagnosed on renal biopsy. The case presentation is reviewed as a typical presentation, and the literature is reviewed regarding this newly reported entity, resulting in infiltrative renal amyloidosis and chronic renal disease.
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