Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest radiographs are limited by low lung volumes which accentuate the interstitial markings . There is no definite pulmonary edema . Cardiomegaly is moderate . There are no abnormal cardiac or mediastinal contours . There is no effusion consolidation or pneumothorax .
    OUTPUT:
    
Low lung volumes accentuate interstitial markings . No definite pneumonia or CHF .