Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well expanded and clear . The cardiomediastinal silhouette , hilar contours , and pleural surfaces are normal . The left hemidiaphragm is elevated and underlying loops of bowel are mildly distended . There is no pleural effusion or pneumothorax .
    OUTPUT:
    
1 . There is no evidence of acute intrapulmonary process . 2 . The left hemidiaphragm is elevated and underlying loops of bowel are mildly distended . The elevation may be secondary to the loops of bowel , however , withour prior radiographs for comparison a causal relationship is difficult to establish .