Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lung volumes are very low and exaggerate the pulmonary vascular markings . Bibasilar atelectasis is noted and the lungs are otherwise without a focal consolidation , effusion , or pneumothorax . Cardiomediastinal silhouette remains stable and at the upper limits of normal . No acute fractures are identified .
    OUTPUT:
    
Very low lung volumes which exaggerate the vascular markings and cardiac silhouette . Bibasilar atelectasis with no evidence of an acute cardiopulmonary process .