Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable upright chest film ___ at 10 :36 is submitted .
    OUTPUT:
    
Given patient rotation , cardiac and mediastinal contours are stable . There continue be some calcified right hilar lymph nodes suggestive of prior granulomatous infection . Lung volumes are slightly low with patchy opacities at both bases , left greater than right , which may reflect atelectasis , although pneumonia or aspiration should also be considered . No evidence of pulmonary edema . No pneumothorax .