Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A right approach PICC terminates at the cavoatrial junction , unchanged . Lung volumes are low resulting in bronchovascular crowding , however , no new consolidation is identified . There is no overt interstitial edema or large pleural effusions . Moderate mediastinal widening is unchanged compared to earliest available prior ( ___ ) , though could reflect aortic enlargement . Enteric catheter courses below the diaphragm with the tip in the region of the stomach , though incompletely imaged .
    OUTPUT:
    
1 . Low lung volumes , though no definite consolidation . 2 . Unchanged mediastinal widening may be due to a dilated aorta . Cross - sectional imaging would be recommended for confirmation .