Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are hyperinflated and clear bilaterally . Diaphragms are flattened bilaterally , consistent with COPD . The right pulmonary artery on lateral projection appears enlarged relative to prior study . In the context of other clinical signs , this finding is concerning for possible pulmonary embolism , and CTPA is recommended .
    OUTPUT:
    
Increased caliber of right pulmonary artery , concerning for pulmonary embolism . Recommendation for CTPA is made . These findings were reported to Dr . ___ ___ phone by ___ .