Key clinical message:
Vasculitis, though rare, is a serious extrahepatic manifestation of HBV infection.Chronic HBV affects millions of people globally, causing significant morbidity and 600,000 deaths annually. HBV patients should be considered for evaluation of vasculitis, even if they lack liver symptoms. Steroid therapy has been found effective for vasculitis in HBV patients and is more beneficial when combined with antiviral treatment.