Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The patient is status post tracheoplasty . The endotracheal tube is 3 .5 cm from the carina . Right - sided chest without evidence of pneumothorax . Low lung volumes with small right - sided pleural effusion and bibasal atelectasis . Moderate cardiomegaly has increased since the prior and should have attention on the follow up to ensure no pericardial or mediastinal hematoma .
    OUTPUT:
    
No visible pneumothorax . Low lung volumes with small right - sided pleural effusion and bibasal atelectasis . Moderate enlargement of the cardiomediastinal silhouette has increased since the prior , can be related to technique however should have attention on the follow up to ensure no pericardial or mediastinal hematoma .