Some patients have p-ANCA's in their blood, or perinuclear antineutrophilic cytoplasmic antibodies which are kind of antibodies that target antigens in the body's own neutrophils.

一些患者的循环血中存在p-ANCA，即核周型抗中性粒细胞胞浆抗体，这些抗体能靶向攻击自体的中性粒细胞。