Granulomatosis With Polyangiitis Presenting as Deep Vein Thrombosis in an Adolescent: A Rare Case Report

ABSTRACT Granulomatosis with polyangiitis can rarely present as deep vein thrombosis in adolescents. Unexplained thrombosis in a young patient, accompanied by systemic inflammatory features, should raise suspicion for an underlying vasculitis. Early recognition and prompt initiation of immunosuppressive therapy alongside anticoagulation are crucial to prevent diagnostic delay and improve clinical outcomes.