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What is proliferative glomerulonephritis with monoclonal IgG deposits?

Author

Daniel Johnson

Published Mar 18, 2026

What is proliferative glomerulonephritis with monoclonal IgG deposits?

Proliferative glomerulonephritis with monoclonal IgG deposits (PGNMID) is a newly recognized entity caused by monoclonal deposition of IgG. PGNMID resembles immune complex glomerulonephritis (GN) on light and electron microscopy.

What is non proliferative glomerulonephritis?

Non-proliferative glomerulonephritis is characterised by a lack of glomerular cell proliferation and typically presents with nephrotic syndrome. Proliferative glomerulonephritis is characterised by increased numbers of cells in the glomerulus. It typically presents with nephritic syndrome.

What does proliferative glomerulonephritis mean?

Proliferative glomerulonephritis describes the finding of increased cellularity of the glomerulus, which may be due to proliferation of intrinsic glomerular cells, infiltration of leucocytes, or both.

What causes proliferative glomerulonephritis?

Causes. Acute proliferative glomerulonephritis (post-streptococcal glomerulonephritis) is caused by an infection with streptococcus bacteria, usually three weeks after infection, usually of the pharynx or the skin, given the time required to raise antibodies and complement proteins.

What is the most common cause of acute Postinfectious glomerulonephritis?

The most common type of PIGN is caused by a type of bacteria called streptococcus (strep). Post-streptococcal glomerulonephritis most often affects children 1-2 weeks after a streptococcal throat infection (“strep throat”). Less often, it can happen 3-6 weeks after a streptococcal skin infection.

How do you treat glomerulonephritis?

How is glomerulonephritis treated?

  1. Changes to your diet so that you eat less protein, salt and potassium.
  2. Corticosteroids such as prednisone.
  3. Dialysis, which helps clean the blood, remove extra fluid and control blood pressure.
  4. Diuretics (water pills) to reduce swelling.

What are the signs and symptoms of glomerulonephritis?

Early signs and symptoms of the chronic form may include: Blood or protein in the urine (hematuria, proteinuria) High blood pressure. Swelling of your ankles or face (edema)…Symptoms of kidney failure include:

  • Lack of appetite.
  • Nausea and vomiting.
  • Tiredness.
  • Difficulty sleeping.
  • Dry and itchy skin.
  • Nighttime muscle cramps.

Which is the main complication of glomerulonephritis?

Glomerulonephritis can damage your kidneys so that they lose their filtering ability. As a result, dangerous levels of fluid, electrolytes and waste build up in your body. Possible complications of glomerulonephritis include: Acute kidney failure.

What are the signs and symptoms of acute glomerulonephritis?

Glomerulonephritis signs and symptoms include:

  • Pink or cola-colored urine from red blood cells in your urine (hematuria)
  • Foamy urine due to excess protein (proteinuria)
  • High blood pressure (hypertension)
  • Fluid retention (edema) with swelling evident in your face, hands, feet and abdomen.