Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A single portable upright AP chest radiograph is limited by low lung volumes which accentuates the pulmonary vasculature . Right basilar opacity is likely due to atelectasis . Crowding of pulmonary vasculature is noted . There is no pleural effusion or pneumothorax . Mild cardiomegaly is accentuated by low lung volumes . The thoracic aorta is mildly tortuous . Cholecystectomy clips are noted in the right upper quadrant . There is gaseous distention of colon and / or stomach in the left upper quadrant .
    OUTPUT:
    
1 . Low lung volumes . Probable right basilar atelectasis . 2 . Gaseous distention of stomach and / or large bowel in the left upper quadrant . Consider CT for further assessment . No free intraperitoneal air .