Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are streaky bibasilar opacities . Superiorly , the lungs are clear without focal consolidation . There is moderate cardiomegaly as on prior and tortuosity of the descending thoracic aorta . Prominence of the right hilum as seen as confluence of hilar vasculature on prior CT scan without enlargement . No acute osseous abnormalities .
    OUTPUT:
    
Bibasilar opacities most likely atelectasis although infection would be difficult to exclude in the proper clinical setting . Cardiomegaly .