Concurrence of Fibrillary Glomerulonephritis and AL Amyloidosis Associated with Monoclonal Gammopathy

Renal diseases with organized deposits include amyloid, fibrillary, immunotactoid, and cryoglobulinemic glomerulopathies. AL amyloidosis and fibrillary glomerulonephritis are different in the composition of their immunoglobulin deposits. Fibrils of fibrillary glomerulonephritis are usually composed of polyclonal, occasionally oligoclonal or monoclonal, immunoglobin G, but amyloidosis consists of monoclonal light chains. Simultaneous occurrence of fibrillary glomerulonephritis and AL amyloidosis is very rare. We report a case of fibrillary glomerulonephritis combined with AL amyloidosis in a 71-yr-old man. KCI Citation Count: 0