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Summary of Conditions that can Cause False-positive Serum Anti-GBM Antibody Results
| Types of Causes | Examples |
|---|---|
| GBM injury | ANCA double positive |
| Activation of the humoral immunity | HIV |
| Nonspecific reactions (anti-BSA antibody) | Milk allergy Surgical adhesion (this case) |
Abbreviations: ANCA, anti-neutrophil cytoplasmic antibody; BSA, bovine serum albumin; GBM, glomerular basement membrane; HIV, human immunodeficiency virus.
