International Rhinologic Society Rhinology 0300-0729 2026 07 14 Nasal biopsy in ANCA-associated vasculitis: a game changer or a false friend? EN L. Gazzini Department of Otolaryngology-Head and Neck Surgery, Hospital of Bolzano (SABES-ASDAA), Teaching Hospital of the Paracelsus Medical Private University (PMU), Bolzano, Italy I. Girolami Department of Pathology, Hospital of Bolzano (SABES-ASDAA), Teaching Hospital of the Paracelsus Medical Private University (PMU), Bolzano, Italy S. Niederbacher Department of Reumathology, Hospital of Brunico (SABES-ASDAA), Teaching Hospital of the Paracelsus Medical Private University (PMU), Brunico, Italy L. Calabrese Department of Otolaryngology-Head and Neck Surgery, Hospital of Bolzano (SABES-ASDAA), Teaching Hospital of the Paracelsus Medical Private University (PMU), Bolzano, Italy M. Bond Department of Reumathology, Hospital of Brunico (SABES-ASDAA), Teaching Hospital of the Paracelsus Medical Private University (PMU), Brunico, Italy Journal Article 3486 10.4193/Rhin26.217 Ear–nose–throat (ENT) involvement is common in ANCA associated vasculitis, particularly in granulomatosis with polyangiitis (GPA) and EGPA eosinophilic granulomatosis with polyangiitis (EGPA), with sinonasal manifestations frequently representing the earliest clinical features of disease (1).