Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral upright chest radiographs demonstrate bilateral hilar prominence , likely secondary to low lung volumes . There is a small right pleural effusion and a probable focus of airspace abnormality in the lower lung , favoring the right side . The cardiac silhouette , and mediastinal contours are normal .
    OUTPUT:
    
Low lung volumes , with a small right pleural effusion and lower lung airspace abnormality . The side of abnormality could be better determined with bilateral oblique views . Recommendations were discussed with Dr . ___ at 11 :00 AM by phone .