Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are patchy areas of increased opacity in both lower lobes . Unclear if this is due to volume loss or early infiltrate . The left subclavian line is unchanged . There is lucency under the right hemidiaphragm on this semi erect film and free air can not be excluded .
    OUTPUT:
    
1 . Bilateral lower lobe infiltrates 2 . ? Free air under right hemidiaphragm . Findings discussed with ___ at the time of dicating this report on ___ at 3 :55 Pm by Dr . ___