Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single portable view of the chest . No prior . The lungs are hyperinflated with relative paucity of interstitial markings suggesting underlying COPD . There is a region of subtle increased opacity identified at the right lung base , which could represent pneumonia . Elsewhere , there is no confluent consolidation . There is no definite effusion . Cardiac silhouette is slightly enlarged . Atherosclerotic calcifications noted in the aorta which is slightly tortuous . No acute osseous abnormality detected .
    OUTPUT:
    
Suspected right lung base pneumonia .