Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lung volumes are low , limiting assessment and accentuating the bronchovascular structures . Within the limitations , there is no evidence of a focal consolidation , pulmonary edema , pleural effusion , or pneumothorax . The cardiomediastinal silhouette is normal . A VNS device overlies the left mid chest . The VNS device that was overlying the left upper chest has been removed .
    OUTPUT:
    
No acute cardiopulmonary process .