Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac silhouette size is within normal limits . Atherosclerotic calcifications at the aortic knob are noted . The mediastinal and hilar contours are unremarkable . Lungs appear hyperinflated . Patchy ill - defined opacities are noted in the lung bases concerning for pneumonia or aspiration . Small bilateral pleural effusions are also demonstrated . No pneumothorax or pulmonary edema is clearly present . Multilevel degenerative changes are seen in the thoracic spine .
    OUTPUT:
    
Bibasilar ill - defined opacities concerning for pneumonia or aspiration with small bilateral pleural effusions .