In case of AAV with kidney involvement, physicians should explore anti-GBM antibodies and be aware of the possible sequential development of AAV, especially with MPO-ANCA, and anti-GBM glomerulonephritis. This sequential disease history is associated with a poor renal outcome, highlighting the need for urgent diagnosis and management.
Keywords: ANCA‐associated vasculitis; anti‐GBM disease; glomerulonephritis; myeloperoxidase.
© 2021 The Authors. Clinical Case Reports published by John Wiley & Sons Ltd.