Abstract
A 34-year-old man with bronchial asthma was introduced to our clinic because his blood tests showed a white blood cell count of 25,200/μL with a differential of 70% eosinophils, and chest computed tomography revealed non-segmental multi-lobar consolidation. Bronchoscopy was performed and yellow broncho-alveolar lavage fluid (BALF) was collected (Picture 1). The supernatant of BALF was still yellow (Picture 2). The total cell count (TCC) was 110×105/mL and the cell differentiation of BALF showed a significant elevation of eosinophils (98%). As a result, a diagnosis of idiopathic chronic eosinophilic pneumonia (EP) was made. Eosinophilic cationic protein (ECP), a representative eosinophil-derived protein, in BALF was also significantly elevated (105 μg/L).
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