Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: In comparison to ___ portable chest radiograph , the patient is again rotated . Hyperinflation of both ungs and flattening of the hemidiaphragms are attributable to COPD . Heterogeneous coalescing opacification at the lung bases , right greater than left , has progressed slightly , most consistent with worsening aspiration pneumonia . The right costophrenic angle is blunted by a small right pleural effusion . Cardiomediastinal and hilar contours are normal .
    OUTPUT:
    
1 . Worsening bibasilar , aspiration pneumonia . 2 . COPD