Eosinophilic Granulomatosis with Polyangiitis (Churg-Strauss Syndrome): a Difficult Journey to Diagnosis

The article describes a rare autoimmune disease – eosinophilic granulomatosis with polyangiitis (Churg-Strauss syndrome) and presents a clinical case . The diagnosis was determined according to the established diagnostic criteria (bronchial asthma, blood eosinophilia - 61.2%, sciatic nerve neuropathy, pulmonary infiltrates, catarrhal polysinusitis, extravascular eosinophilia – eosinophils in sputum and bronchoalveolar lavaged) only 5 months after the onset of the disease. Prior to this, the patient had been hospitalized several times with suspected COVID-19.