Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single frontal view of the chest was obtained . Heart size is normal and cardiomediastinal contours are stable . The lungs are clear without focal consolidation , pleural effusion , or pneumothorax . PEG tube overlying the upper abdomen midline is in unchanged position .
    OUTPUT:
    
No acute cardiopulmonary process .