Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . There are relatively low lung volumes . Medial right base opacity at the cardiophrenic angle is felt to most likely be due to overlapping vascular structures with possible some underlying atelectasis . No definite correlate is seen on the lateral view . There is no definite focal consolidation . No pleural effusion or pneumothorax . The cardiac and mediastinal silhouettes are stable and unremarkable . Hilar contours are stable .
    OUTPUT:
    
Slightly low lung volumes . Opacity projecting at the medial right lung base is felt to be due to overlapping vascular structures and possibly some underlying atelectasis . No correlate is seen on the lateral view . No definite focal consolidation .