PRTN3 and vascular disorder: Immunological profiles measuring cytoplasmic anti-neutrophil cytoplasmic antibody (c-ANCA), proteinase 3 (PR3) antibody, atypical perinuclear anti-neutrophil cytoplasmic antibody (p-ANCA), anti-myeloperoxidase, and double-stranded DNA antibody were all within normal limits, which ruled out any vasculopathy.