Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Patient is rotated somewhat to the right . Tracheostomy tube is again seen . There is a small to moderate right pleural effusion with overlying atelectasis . Right base opacity may be due to combination of pleural effusion and atelectasis however , overlying consolidation is not excluded . The left lung is grossly clear . No pneumothorax is seen . The cardiac and mediastinal silhouettes are unremarkable .
    OUTPUT:
    
Small moderate right pleural effusion . Overlying right base opacity due to combination of pleural effusion and atelectasis however underlying pneumonia or aspiration may also be present .