Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac , mediastinal and hilar contours appear stable . There is no pleural effusion or pneumothorax . A lung nodule again projects over the right lower lobe , probably unchanged to the extent this can be judged from radiography . On the lateral view , the superior contours of the hemidiaphragms are obscured by a vague opacity that is not well seen on the frontal view , but otherwise lung fields appear clear .
    OUTPUT:
    
1 . Suspicion for pneumonia based on a vague anterior inferior opacity depicted only on the lateral view , probably in the lingula , although potentially right middle lobe ; atelectasis is a possible alternative diagnosis . 2 . Similar appearance of right basilar pulmonary nodule , although small changes would be difficult to detect with radiography .