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Updated: Aug 9, 2026

Assessment of Kidney Function in Mouse Models of Glomerular Disease
Published on: June 30, 2018
[Fibrillary glomerulopathy]
1Katedra vnútorného lekárstva Institútu pre vzdelávanie pracovníkov v zdravotníctve, Bratislava.
Abstract:
The authors present an account on contemporary knowledge of the diagnosis and differential diagnosis of fibrillar glomerulopathies. The latter are characterized by extracellular localized microfibrils and microtubules resp. in the glomeruli of the kidneys, their diameter being 8-60 nm. They are divided into amyloid and non-amyloid types. The others are classified according to the immunofluorescent finding into immunoglobulin positive and negative ones. The differential diagnosis is important in particular in immunoglobulin positive ones as they are present in serious diseases such as cryoglobulinaemia, monoclonal gammapathy, systemic lupus erythematosus and immunotactoid glomerulopathy.
Insights
Fibrillar glomerulopathies, characterized by microfibrils in kidney glomeruli, are classified into amyloid and non-amyloid types. Accurate differential diagnosis is crucial, especially for immunoglobulin-positive cases linked to severe systemic diseases.
Area of Science:
- Nephrology
- Pathology
- Immunology
Context:
- Fibrillar glomerulopathies involve extracellular microfibrils and microtubules in kidney glomeruli (8-60 nm diameter).
- These conditions are broadly categorized into amyloid and non-amyloid types.
- Further classification is based on immunofluorescence findings: immunoglobulin-positive and immunoglobulin-negative.
Purpose:
- To review current knowledge on the diagnosis and differential diagnosis of fibrillar glomerulopathies.
- To highlight the importance of distinguishing between different types of fibrillar glomerulopathies.
- To emphasize the clinical significance of immunoglobulin-positive fibrillar glomerulopathies.
Summary:
- Fibrillar glomerulopathies are defined by the presence of microfibrils and microtubules within the glomerular structures of the kidney.
- Diagnosis involves differentiating between amyloid and non-amyloid forms, and further classifying them based on immunoglobulin staining via immunofluorescence.
- Immunoglobulin-positive cases require careful differential diagnosis due to their association with severe conditions like cryoglobulinemia, monoclonal gammopathies, systemic lupus erythematosus, and immunotactoid glomerulopathy.
Impact:
- Improved diagnostic accuracy for fibrillar glomerulopathies.
- Enhanced understanding of the clinical implications of immunoglobulin-positive variants.
- Facilitation of timely and appropriate management for patients with associated systemic diseases.
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