Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . There are relatively low lung volumes . There is elevation of the right hemidiaphragm and there is bibasilar atelectasis . Bibasilar opacities most likely relate to atelectasis , although an early infection or aspiration is not excluded in the appropriate clinical setting . There is prominence of the central pulmonary vasculature suggesting mild pulmonary edema which may be accentuated by low lung volumes . There is slight blunting of the right costophrenic angle and there may be a trace right pleural effusion . No large pleural effusion is seen bilaterally . The cardiac and mediastinal silhouettes are unremarkable . No evidence of pneumothorax is seen .
    OUTPUT:
    
1 . Bibasilar opacities most likely relate to atelectasis in this patient with low lung volumes and mildly elevated right hemidiaphragm , however , underlying infection or aspiration is not excluded in the appropriate clinical setting . 2 . Prominence of the central pulmonary vasculature may suggest mild pulmonary edema which may be in part accentuated by low lung volumes . 3 . Possible trace right pleural effusion .