Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is opacity in the right lower lobe silhouetting posterior aspect of right hemidiaphragm on lateral view . This may be atelectasis , however pneumonia as possible in correct clinical setting . There is no pulmonary edema or pleural effusion . Borderline enlarged cardiac silhouette is smaller compared to ___ .
    OUTPUT:
    
There is opacity in the right lower lobe silhouetting posterior aspect of right hemidiaphragm on lateral view . This may be atelectasis , however pneumonia as possible in correct clinical setting .