Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Low lung volumes are present . This accentuates the size of the cardiac silhouette which is top normal with a left ventricular predominance . Mediastinal and hilar contours are unremarkable . Crowding of bronchovascular structures is present without pulmonary edema . Minimal patchy opacities in the lung bases likely reflect areas of atelectasis , and no focal consolidation is present . No pleural effusion or pneumothorax is demonstrated . Moderate hypertrophic changes are again demonstrated within the thoracic spine .
    OUTPUT:
    
Low lung volumes with patchy opacities in the lung bases likely reflective of atelectasis . No pulmonary edema .