Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are bibasilar opacities , greater on the left which may reflect atelectasis . Aspiration however can not be excluded . No pleural effusion or pneumothorax identified . The size the cardiac silhouette is enlarged . A density projects over the lower mediastinum is likely reflective of a hiatal hernia . A small amount free air is noted beneath the right hemidiaphragm .
    OUTPUT:
    
1 . Bibasilar opacities are likely reflective of atelectasis , however aspiration should be considered in the proper clinical context . 2 . Small amount of free air under the right hemidiaphragm . 3 . Suspected hiatal hernia .