PRTN3 and granulomatosis with polyangiitis: C-ANCA, cytoplasmic antineutrophil cytoplasmic antibodies; EULAR/ACR, European League Against Rheumatism/American College of Rheumatology; GPA, granulomatosis with polyangiitis; P-ANCA, perinuclear antineutrophil cytoplasmic antibodies; TB, tuberculosis