Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is mildly enlarged but unchanged . The aorta remains tortuous . The mediastinal contour is similar . There is mild pulmonary vascular congestion . Lung volumes are low with patchy atelectasis noted at the lung bases . No pleural effusion or pneumothorax is identified . Chronic fracture deformity of the right proximal humerus is demonstrated along with old left - sided rib fractures .
    OUTPUT:
    
Low lung volumes with patchy atelectasis in the lung bases and mild pulmonary vascular congestion .