Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mild cardiomegaly is a stable . The pulmonary arteries appearance prominent . Patient has known emphysema . There are low lung volumes . Opacities in the right lower lobe worrisome for pneumonia . There is no pneumothorax or large pleural effusions . Linear scarring projecting in the left upper hemi thorax is unchanged . There is a hiatal hernia .
    OUTPUT:
    
Ill - defined opacities in the right lower lobe are consistent with pneumonia .