Síndromes pulmonares eosinofílicos.

Although the eosinophiles are normal lung components, several lung eosinophilic syndromes are characterized by an increased number of eosinophiles in peripheral blood, pulmonary tissue, sputum, or bronchoalveolar lavage. These lung eosinophilic syndromes are generally characterized by respiratory symptoms, chest x - ray disturbances, and potential systemic manifestations. The eosinophile plays an important role in each one of these syndromes; it is often difficult to distinguish between them. However there are important clinical differences and treatment paradigms, so it is important to understand and to appreciate the features that distinguish each one of these conditions. This article summarizes the clinical manifestations of these syndromes, the differences between them and the diagnostic approach to the patient with eosinophilia and lung disease. [ABSTRACT FROM AUTHOR]