Two Cases of Proliferative Glomerulonephritis With Monoclonal IgG Deposits Treated With Renin Angiotensin Inhibition Alone With Long-term Follow-up

Proliferative glomerulonephritis with monoclonal immunoglobulin deposits (PGNMID) is a recently recognized form of monoclonal gammopathy of renal significance (MGRS). It is characterized by a glomerulonephritis with exclusively glomerular monotypic Ig deposits, typically IgG and less commonly IgM or IgA. The glomerular deposits are nonorganized with granular amorphous texture and contain a complete Ig molecule with light-chain restriction and...