Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable upright chest radiograph demonstrates low lung volumes with moderate bilateral pleural effusions . A left chest tube has been placed in the interim , with resultant decrease in size of left pleural effusion . Airspace opacity in the left lower lobe likely reflects reexpansion pulmonary edema . The cardiac silhouette and mediastinal contours are notable for a known anterior mediastinal mass . There is no pneumothorax .
    OUTPUT:
    
Interval left chest tube placement with decrease in size of left pleural effusion and resultant reexpansion edema in the left lower lobe . There is a right moderate pleural effusion remains .