Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The tracheostomy is unchanged in position . There is increasing opacity at the right base , which may represent a developing pneumonia or atelectasis . The lungs are otherwise clear . The cardiomediastinal silhouette is stable . The pulmonary vasculature is normal . There are no pleural effusions and no pneumothorax .
    OUTPUT:
    
Increasing right basilar opacification , which may represent a developing pneumonia or atelectasis .