Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest are compared to previous exam from ___ . The lungs are clear of consolidation or effusion . Cardiomediastinal silhouette is within normal limits . Tortuous aorta is noted . Osseous and soft tissue structures are unremarkable . There is increased lucency at the right lung base , likely below the hemidiaphragm suspicious for intraperitoneal air .
    OUTPUT:
    
Increased lucency at the right lung base thought most likely to be below the hemidiaphragm suspicious for free intraperitoneal air , potentially from recent surgery ; however , amount of air is more than expected given time since surgery . Findings discussed with ___ resident at 1 : 40 pm at time of discovery .