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[Basic nephropathology for pathologists-part 1 : Kidney biopsy-inflammation and immune complexes]
Maike Büttner-Herold1, Ariana Gaspert2, Kerstin Amann3
1Abteilung Nephropathologie, Pathologisches Institut, Universitätsklinikum Erlangen, Krankenhausstr. 8-10, 91054, Erlangen, Deutschland. maike.buettner@uk-erlangen.de.
Der Pathologe
|March 28, 2022
Summary
General pathologists can identify critical inflammatory and immunologic kidney changes in biopsies, aiding prompt diagnosis of conditions like vasculitis and glomerulonephritis for timely intervention.
Area of Science:
- Nephrology
- Pathology
- Immunology
Background:
- Kidney biopsy assessment is typically centralized in specialized centers.
- General pathologists may encounter kidney biopsies, and non-neoplastic diseases can coexist with renal tumors.
- Inflammatory and immunologic changes in renal compartments can signal urgent therapeutic needs.
Purpose of the Study:
- To survey inflammatory and immunologic changes across all renal compartments.
- To highlight patterns of renal injury indicative of specific diseases.
- To guide general pathologists in recognizing significant findings in kidney biopsies.
Main Methods:
- Review of renal biopsies with a focus on inflammatory and immunologic alterations.
- Emphasis on identifying characteristic patterns of kidney injury.
- Correlation of findings with potential underlying renal diseases.
Main Results:
- Renal involvement in vasculitis primarily affects glomeruli, with less impact on arteries.
- Interstitial inflammation is often secondary to other primary kidney diseases, not a standalone condition.
- Distinct patterns of renal injury were identified across various compartments.
Conclusions:
- General pathologists can play a role in identifying significant renal pathology.
- Recognizing specific inflammatory and immunologic patterns is crucial for diagnosing conditions like vasculitis, glomerulonephritis, and interstitial nephritis.
- Understanding the context of interstitial inflammation is key to accurate diagnosis.
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