Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: New heterogeneous opacity at the right lung base from ___ is concerning for pneumonia . The left lung is clear . The heart size is unchanged . There is no pneumothorax or pleural effusion . A gastrostomy tube is incidentally noted .
    OUTPUT:
    
New heterogeneous opacity at the right lung base since ___ is concerning for pneumonia .