Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Low lung volumes accentuate the cardiomediastinal contours and result in crowding of bronchovascular structures . There are no focal areas of consolidation to suggest the presence of pneumonia . . Cardiomediastinal silhouette is stable . No pleural effusion or pneumothorax is seen .
    OUTPUT:
    
No acute cardiopulmonary process .