Conclusion
We present a case of GPA with DAH, which developed shortly after COVID-19 infection. COVID-19 and COVID-19- induced new-onset GPA share many clinical and radiological features, making it challenging for clinicians to distinguish between the two. Our study also provided some clues about the diagnostic challenge of GPA induced by COVID-19. The limited number of cases and retrospective evaluation are the limitations of this review.The retrospective study based on this case could provide useful information regarding the evaluation of clinical symptoms, diagnostic methods, and management of this confusing condition.In addition, the pathophysiology and mechanism of GPA induced by COVID-19 have not been fully elucidated and still need to be further studied.The possibility of a common immune mechanism for the development of vasculitis during SARS-CoV-2 infection and immunization warrants further investigation, which could provide important information about the pathogenesis of GPA and immune reactivity to COVID-19, and is crucial for the diagnosis and treatment of GPA.
Table1 Summary of clinical findings, demographics, and treatment strategies of GPA after COVID-19 infection