Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . There is no pleural effusion or pneumothorax . The cardiac and mediastinal silhouettes are unremarkable . There is subtle opacity at the right lower lobe , which most likely relates to atelectasis , however , an early infectious process can not be excluded in the appropriate clinical setting . Bilateral spinal rods are partially imaged .
    OUTPUT:
    
Slight increase in opacity at the right lower lobe likely represents atelectasis / overlying vascular structures . However , in the appropriate clinical setting , an early consolidation is difficult to exclude .