Common clinical pattern of antineutrophil cytoplasmic antibody -associated vasculitis: An experience from a multicenter study in Saudi Arabia.

Objectives: To understand the most common type and clinical manifestations of associated vasculitis (AAV) in the Saudi Arabia.

Methods: This retrospective study was conducted at King Fahad Medical City and the Security Forces Hospital Program, Riyadh, Saudi Arabia, between January 2014 and May 2022. Patients aged ≥18 years were included in the study and diagnosed based on clinical manifestations, serology, or histopathology according to the EMA algorithm.