Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are hyperinflated with flattening of the diaphragms suggestive of chronic obstructive pulmonary disease . Patchy opacity in the right middle lobe is concerning for collapse . There is no pulmonary edema , pleural effusion or pneumothorax . The cardiac and mediastinal contours are normal .
    OUTPUT:
    
Right middle lobe collapse . CT chest with intravenous contrast is recommended to exclude an obstructing central endobronchial lesion .