Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable AP upright view of the chest provided . Midline sternotomy wires again noted . The previously noted right IJ central venous catheter has been removed . There are small bilateral pleural effusions with lower lung compressive atelectasis . Difficult to exclude a superimposed pneumonia . Cardiomediastinal silhouette is stable . Bony structures are intact .
    OUTPUT:
    
Bilateral small pleural effusions with lower lung atelectasis , less likely pneumonia .