Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Supine portable chest radiograph shows no focal parenchymal consolidation to suggest pneumonia . Uncoiled , atherosclerotic thoracic aorta is unchanged . A squarish opacity of uncertain etiology is projected over the left upper quadrant and may be something plastic . There is gaseous distention of the stomach
    OUTPUT:
    
No focal pneumonia . Note gaseous distention of stomach