Causes of PR3-specific c-ANCA other than Wegener’s granulomatosis.
| Connective tissue disease |
| Cocaine-induced midline destructive lesions |
| Subacute bacterial endocarditis |
| Tuberculosis |
| Chronic hepatitis B virus infection |
| Chronic hepatitis C virus infection |
| Amoebic liver abscess |
| Phlegmon |
| Cystic fibrosis |
| Ventriculoperitoneal shunt nephritis |
| Parvovirus B19 |
PR3: proteinase 3; c-ANCA: cytoplasmic antineutrophil cytoplasmic antigen.