Yellow bronchoalveolar lavage from chronic eosinophilic pneumonia

A 64-year-old female was admitted to our hospital for non-resolving pneumonia. Chest imaging demonstrated persistent, primarily right-sided pulmonary infiltrates despite two courses of oral antibiotics. Bloodwork was notable for peripheral eosinophilia (1.0 x 109/L). A bronchoscopy was completed demonstrating bright yellow bronchoalveolar lavage (BAL) fluid with a cell count differential of 27% eosinophils. A diagnosis of chronic eosinophilic pneumonia was made, with the patient having a dramatic clinical and radiographic improvement following treatment with low-dose oral corticosteroids.