Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is mild cardiomegaly . There is mild pulmonary vascular congestion , otherwise the hilar mediastinal contours are normal . The lungs demonstrate diffuse bilateral parenchymal opacities , predominately in the left perihilar region . There may be small bilateral pleural effusions . There is no evidence of pneumothorax . The visualized osseous structures are unremarkable . Left - sided pacer device is seen with leads in appropriate position .
    OUTPUT:
    
1 . Mild pulmonary vascular congestion . Diffuse bilateral parenchymal opacities , predominantly left perihilar region may be secondary to pulmonary edema . 2 . No rib fractures detected , though this technique is limited in sensitivity for osseous trauma . 3 . No pneumothorax .