Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There appear to be increased interstitial markings at the right lower lung on the frontal view , not substantiated on the lateral view . Findings may be artifactual although a subtle infectious process is not excluded in the appropriate clinical setting . No pleural effusion or pneumothorax is seen . The cardiac and mediastinal silhouettes are stable .
    OUTPUT:
    
There appear to be increased interstitial markings at the right lower lung on the frontal view , not substantiated on the lateral view . Findings may be artifactual although a subtle infectious process is not excluded in the appropriate clinical setting