Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral views of the chest are compared to previous exam from ___ . Lungs are clear of focal consolidation or effusion . There is , however , central pulmonary vascular engorgement and slightly indistinct pulmonary vascular markings . Cardiac silhouette is enlarged but not significantly changed given differences in technique . Surgical clips identified in the upper abdomen , potentially from prior cholecystectomy . Osseous and soft tissue structures are otherwise unremarkable . No free air .
    OUTPUT:
    
Pulmonary vascular congestion without frank pulmonary edema or other acute cardiopulmonary process or free air .