The most common nonfamilial forms of amyloidosis that involve the kidney are the AL (amyloid light chain) and AA (serum amyloid A) types. These two forms require different treatment strategies ...

Of these, 5 had renal biopsy–confirmed renal AL amyloidosis, and 1 had LCDD. All 5 patients with AL amyloidosis had λ Bence Jones proteinuria. The only patient in our study with renal LCDD had ...

A renal biopsy was then pursued, which confirmed amyloidosis on electron microscopy; however, no immune complex or light chain deposition was identified. Mass spectrophotometry of nerve and kidney ...