RESUMO
The paper presents a clinical case of MPA in a 67-year-old woman following COVID-19, characterized by significant difficulties when working with the early etiological verification of diagnosis. The patient presented with polyarthritis affecting the upper and lower limbs, fever, and comorbid urological pathology in the form of urolithiasis and recurrent cystitis. This clinical presentation, hyperuricemia, azotaemia and anemia were mistakenly interpreted as chronic kidney disease: gouty nephropathy, gouty arthritis, which masked the underlying disease for a long time delaying the timely MPA diagnosis and treatment. Given that MPA is a multisystemic disease, it is essential to enhance awareness and knowledge of healthcare professionals of various specialties regarding AAVs and MPA in particular, as evidenced by the online survey data during COVID-19 pandemic among doctors in 21 countries.