Fibrillary Glomerulonephritis

**Semantic type:** Disease or Syndrome

**Definition:** Glomerulonephritis characterized by the presence of Congo-red negative microfibrils in the mesangium and capillary walls of the glomeruli. It is associated with marked proteinuria and leads to progressive renal failure.

**Synonyms:** - FGN - Non-Amyloid Fibrillary Glomerulonephritis