Table 6.

Pauci-immune GN: ANCA serology, pulmonary manifestationsab

ANCAn (%)Pulmonary Infiltrates
Pauci-immune GN41(100)12
p-ANCA (MPO)26(63)8
c-ANCA (PR-3)5(12)2
Both ANCA positive00
Both ANCA negative1(2.4)1
Both ANCA unknown9(22)1
  • a Biopsies with multiple diagnoses are included.

  • b p-ANCA, perinuclear anti-neutrophil cytoplasmic antibody; c-ANCA, cytoplasmic ANCA; MPO, myeloperoxidase; PR-3, proteinase-3.