Membranoproliferative Glomerulonephritis (MPGN)

Membranoproliferative Glomerulonephritis (MPGN) is a kidney condition that affects the tiny filters called glomeruli, which clean the blood. It involves inflammation and changes in the structure of these filters, leading to problems with kidney function. The disease can cause symptoms like blood in the urine, swelling, and high blood pressure. MPGN affects the body's ability to remove waste and excess fluids, which can lead to serious health issues if untreated. It often develops slowly and can be linked to infections or immune system problems. The main concern is that it can progress to chronic kidney disease or kidney failure over time.

Membranoproliferative Glomerulonephritis (MPGN) is a pattern of glomerular injury characterized by mesangial cell proliferation, thickening of the glomerular basement membrane, and immune complex deposition. It results from dysregulation of the complement system or immune complex-mediated injury, often secondary to infections, autoimmune diseases, or monoclonal gammopathies. MPGN is classified into types based on electron microscopy and immunofluorescence findings, including immune complex-mediated and complement-mediated forms. The disease leads to proteinuria, hematuria, and progressive loss of renal function. Histologically, it shows a characteristic tram-track appearance due to basement membrane splitting. MPGN is clinically significant because it can cause nephrotic or nephritic syndrome and may progress to end-stage renal disease.