Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cystic air-containing structures in the right lung base represent known loops of colon in the anterior diaphragmatic hernia . The cardiomediastinal silhouette is otherwise unremarkable . No focal consolidation concerning for pneumonia . Bibasilar atelectasis is present , and pleural effusions are trace , if any . Previous pulmonary vascular congestion has improved .
    OUTPUT:
    
1 . No focal consolidation concerning for pneumonia . 2 . Cystic air-containing structures in the right lung base represent known loops of colon in the anterior diaphragmatic hernia .