Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The airspace opacities in the left lung and in the right lower lobe which were new on were new on ___ radiograph have minimally improved over last 10 hours . These acute and newly developed opacities between ___ and ___ could reflect asymmetric pulmonary edema or acute pneumonitis . Conclusion should be drawn in conjunction with clinical history . Top normal heart size is normal . The mediastinal and hilar contours are unremarkable .
    OUTPUT:
    
Bilateral airspace opacities in the left lung and the right lower lobe , new since ___ reflecting pulmonary edema or pneumonitis , have minimally improved .