Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Upright AP and lateral views of the chest demonstrate low lung volumes , contributing to mild bibasilar atelectasis and relative crowding of the hilar structures bilaterally . There is no pleural effusion , overt pulmonary edema or pneumothorax . No focal consolidation is identified . The cardiomediastinal silhouette is unremarkable .
    OUTPUT:
    
Low lung volumes . No acute cardiopulmonary process .