Churg-Strauss Syndrome: case report <b>[Abstract in English]</b>

Abstract

Aims: To describe a case of Churg-Strauss syndrome that was innitially diagnosed as difficult to treat asthma. Case description: The patient was a 46 years-old female, with a history of difficult to treat asthma since childhood (4 years-old), with frequent emergency room visits and hospitalizations due to asthma attack related to sinusitis and severe atopic disease. She presented with allergy to several medications, pulmonary function test with a moderate obstructive ventilatory disturbance and significant blood eosinophilia. Clinical and laboratory findings were suggestive of Churg-Strauss syndrome. Maxillary sinus mucosa biopsy with important eosinophilic infiltration corroborated the diagnosis. Conclusion: In spite of its low frequency, Churg-Strauss syndrome should be considered in the differential diagnosis of difficult to treat asthma, due to its poor prognosis and good response to treatment. KEY WORDS: CHURG-STRAUSS SYNDROME/diagnosis; ASTHMA/diagnosis; DIAGNOSIS, DIFFERENTIAL; CASE REPORTS.