Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single portable view of the chest demonstrates clear lungs . The cardiomediastinal silhouette is within normal limits . There is massive amount of free intraperitoneal air below the diaphragm . Degenerative changes are seen at the shoulders .
    OUTPUT:
    
Massive free intraperitoneal air . Findings were discussed by Dr . ___ with Dr . ___ ___ following the discovery at 2 :42 p .m . on ___ over the phone .