Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single portable upright radiograph is provided . Low lung volumes and resultant bronchovascular crowding limits examination in addition to patient body habitus . There is obscuration of the left hemidiaphragm which may represent left lower lobe atelectasis or consolidation or effusion . Right basilar opacity medially is also more conspicuous on the current exam . There is also likley mild pulmonary vascular congestion . Heart size is top normal . There is no right pleural effusion ; however , left pleural effusion can not be excluded .
    OUTPUT:
    
Limited study due to low lung volumes and body habitus . Opacity at the bases may represent atelectasis versus consolidation and / or pleural effusion ( on the left ) . Possible mild pulmonary edema .