Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Dense opacity within the right lower lobe only seen on lateral radiograph . The lungs are otherwise well - expanded and clear . No pleural effusion or pneumothorax . Heart size , mediastinal contour , and hila are unremarkable .
    OUTPUT:
    
Right lower lobe opacity only seen on lateral projection may represent epicardial fat however given density is worrisome for pneumonia in the appropriate clinical setting .