Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well inflated . There are increased interstitial markings with a mild prominence of the vasculature in the upper lung fields concerning for mild pulmonary congestion . Otherwise , no focal opacities are observed . Cardiomediastinal and hilar contours are unremarkable . There is no pleural effusion or pneumothorax . Sternotomy wires are intact . Of note , there is a rectangular shape foreign object projecting over the thoracic inlet , which is likely external to the body .
    OUTPUT:
    
1 . Mild pulmonary vascular congestion . 2 . Radiopaque foreign object projecting over the left thoracic inlet , likely external to the patient .