P-ANCA
PERINUCLEAR ANTI-NEUTROPHIL CYTOPLASMIC ANTIBODIES
Perinuclear antineutrophil cytoplasmic antibodies; Perinuclear anti-neutrophil cytoplasmic antibody
p-ANCA, or MPO-ANCA, or perinuclear anti-neutrophil cytoplasmic antibodies, are antibodies that stain the material around the nucleus of a neutrophil. They are a special class of anti-neutrophil cytoplasmic antibodies.