Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: All there is alveolar opacity throughout much of the right lung , most pronounced in the mid and lower zones , with apparent air bronchograms and maturation of a right costophrenic angle and without aeration of right hemidiaphragm and its extreme lateral edge . There is increased retrocardiac density , with obscuration left hemidiaphragm and probable air bronchograms , consistent with left lower lobe collapse and consolidation . There is relative sparing of the left upper and mid zones . Mild upper zone redistribution is noted on the left .
    OUTPUT:
    
Opacities , which are seen predominantly in the right mid and lower zones and , densely , in the left lower lobe . While this could represent asymmetric pulmonary edema , the possibility of a superimposed infectious consolidation can not be excluded . Upper zone redistribution on the left is noted . On the right , the vessels are obscured by surrounding opacities . Possible small bilateral pleural effusions .