Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A right - sided Port - A - Cath is unchanged in position . Multiple surgical clips are again seen in the left supraclavicular region . Persistent but improved atelectasis is noted at the left lung base compared to ___ . No pleural effusion or pneumothorax is present . The pulmonary vasculature is not engorged . The patient is slightly rotated which exaggerates the appearance of the mediastinum . The cardiomediastinal silhouette is probably unchanged . A massive hiatal hernia is again noted and unchanged . No focal consolidation to suggest pneumonia is detected .
    OUTPUT:
    
1 . No pneumonia . 2 . Improved but persistent left basilar atelectasis . 3 . Stable massive hiatal hernia .