Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The small right effusion is nearly resolved after thoracentesis . No pneumothorax is present . The small left effusion may be slightly smaller . There is no consolidation . Cardiac and mediastinal contours are unremarkable . Left retrocardiac opacity has increased . A right upper lobe granuloma is stable .
    OUTPUT:
    
No residual right pleural effusion status post thoracentesis . No pneumothorax . Increased retrocardiac opacity is most likely atelectasis but pneumonia can not be excluded .