Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right - sided Port - A - Cath tip terminates in the low SVC . The heart size remains moderately enlarged . A large hiatal hernia is re - demonstrated . Aortic knob is calcified . Mediastinal and hilar contours are unchanged . The pulmonary vascularity is normal . Small right pleural effusion is unchanged . Linear opacities in the left lung base likely reflect subsegmental atelectasis . No new focal consolidation is identified , and there is no pneumothorax . Multilevel degenerative changes in the thoracic spine are again noted .
    OUTPUT:
    
No significant interval change compared to the prior exam with small right pleural effusion and left basilar subsegmental atelectasis . Large hiatal hernia .