Differing Levels of Positive Anti-Neutrophil Cytoplasm Antibody (ANCA) Test and Their Correlation With Vasculitis or Malignancy or Chronic Inflammation
Differing Levels of Positive Anti-Neutrophil Cytoplasm Antibody (ANCA) Test and Their Correlation With Vasculitis or Malignancy or Chronic Inflammation
A positive Anti-Neutrophil Cytoplasm Antibody (ANCA) test administered to patients with a
 high probability for vasculitis has high sensitivity and specificity for vasculitis. A
 positive ANCA test result in those patients who do not have a high probability for vasculitis
 requires extensive follow-up because those patients eventually present with malignancy or
 other inflammatory diseases. The investigators wish to investigate the correlation between
 the differing levels of positive ANCA tests and their relationship to vasculitis, malignancy
 and inflammatory diseases.
Inclusion Criteria:

 -  Patients with borderline positive ANCA test results

 Exclusion Criteria:

 -  Pregnant