Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Evaluation is limited due to underpenetration of the AP radiograph . Within this limitation , the lungs appear slightly hyperinflated with flattening of the hemidiaphragms . No focal consolidation concerning for pneumonia , significant pleural effusion , or pneumothorax is detected . The pulmonary vasculature is not engorged . The cardiac silhouette is moderately enlarged . The thoracic aorta is unfolded and tortuous . The mediastinal and hilar contours are otherwise within normal limits and similar in appearance to the prior ___ study . No displaced rib fractures are identified .
    OUTPUT:
    
1 . Limited examination without acute cardiopulmonary process . 2 . No displaced rib fractures .