Invasive fungal infection in ANCA-associated vasculitis: Between the Devil and Deep blue sea. Case series and review of the literature.

Introduction: Patients with antineutrophil cytoplasmic antibody-associated vasculitis (AAV) are susceptible to opportunistic infections, including invasive fungal infections (IFI). This is due to many factors, including prolonged immunosuppressive therapy. The treatment of AAV with such IFIs is challenging.