Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: No definite focal consolidation seen . Subtle right base patchy opacity is similar to prior and thus most likely represents overlap of vascular structures . The left lung is clear . There is no pleural effusion or pneumothorax . The cardiac and mediastinal silhouettes are unremarkable . Some degenerative changes are seen along the spine .
    OUTPUT:
    
No acute cardiopulmonary process . No significant interval change .