A 6-MONTH-OLD female infant presented with a 1-month history of progressive cough, shortness of breath, and fever. Her vital signs were normal and she appeared well nourished. Chest auscultation revealed fine, inspiratory crackles and decreased breath sounds in the right upper lung field. The results of the physical examination were otherwise unremarkable. A chest radiograph (Figure 1) along with axial and direct coronal chest computed tomographic scans (Figure 2 and Figure 3) and flexible bronchoscopic examination were performed (Figure 4).