Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There are relatively low lung volumes which accentuate the bronchovascular markings . Relative opacity at the medial right lung base is felt to more likely be due to vascular structures rather than consolidation . The left lung is clear . There is no pleural effusion or pneumothorax . The cardiac and mediastinal silhouettes are unremarkable .
    OUTPUT:
    
Low lung volumes . Medial right base opacity felt to more likely be due to vascular structures rather than consolidation .