Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Previous ET tube has been removed and has been replaced with a tracheostomy . Left hemodialysis catheter and a left central line is unchanged in position . The cardiac silhouette continues to be enlarged . Low lung volumes are seen . Right middle lobe opacity is seen which may be consistent with pneumonia . Intraperitoneal air is seen consistent with recent PEG tube placement .
    OUTPUT:
    
Endotracheal tube has been replaced with new tracheostomy . intraperitoneal air is seen consistent with recent PEG tube placement . Right middle lobe opacity seen which may be consistent with pneumonia .