Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Median sternotomy wires aligned and intact . Prosthetic aortic and tricuspid valves visualized . Stable widening of the mediastinum and cardiomegaly . Stable right lower lobe opacity . Increasing small right pleural effusion . Right apical pneumothorax is slightly smaller and left apical pneumothorax is stable . No definite osseous or soft tissue abnormalities .
    OUTPUT:
    
Slightly smaller right apical pneumothorax and unchanged small left apical pneumothorax . Increased small right pleural effusion with adjacent basilar atelectasis .