Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: No previous chest x-rays on PACS record for comparison . Possible hyperinflation , consistent with COPD . The heart is not enlarged . There is no CHF , focal infiltrate , or gross effusion . There is slight blunting of the left and ? right costophrenic angle posteriorly . At the periphery of these films , fusion hardware in the cervical spine is incompletely imaged . No free air detected beneath the diaphragm . No dilated loops of bowel are identified in the visualized portion of the upper abdomen . Increased density in the splenic flexure of the colon suggests oral contrast . Surgical clips are also noted at the level of the diaphragm posteriorly .
    OUTPUT:
    
1 ) No acute pulmonary process identified . 2 ) No free air detected beneath the diaphragm .