Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral chest radiograph demonstrates low lung volumes . Heart is moderately enlarged . Mediastinal contour is stable when compared to prior study dated ___ . Low lung volumes results in bronchovascular crowding centrally and atelectasis . There is no pleural effusion . No pneumothorax or acute osseous abnormality is identified .
    OUTPUT:
    
Low lung volumes with atelectasis . Cardiomegaly , no pulmonary edema .