Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are low , accounting for some bronchovascular crowding . Patchy right basiliar opacity could be seen with atelectasis . Mild pulmonary upper zone redistribution suggest pulmonary venous hypertension . The heart appears enlarged , although this study is not tailored for assessment of cardiac size . There is no evidence of pneumothorax .
    OUTPUT:
    
Findings suggesting slight fluid overload . Right lower lung opacity , not specific , atelectasis versus contusion could be considered .