Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A tiny right apical pneumothorax and chest wall / neck emphysema , is unchanged . Previously seen left apical pneumothorax is no longer visualized . No pleural effusion is detected . Low lung volumes with right basal atelectasis and left lower lobe collapse is noted . There is stable post-operative widening of the cardiomediastinal silhouette . There is mild pulmonary edema . Multiple intact sternotomy wires are noted . A prosthetic aortic valve is in place . Bilateral chest tubes are unchanged in position . A right internal jugular approach central venous catheter terminates in the cavo-atrial junction .
    OUTPUT:
    
1 . Tiny right apical pneumothorax , stable since ___ . 2 . Mild pulmonary edema . Left lower lobe collapse .