Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest demonstrate the lungs are well expanded and clear . The cardiomediastinal silhouette is unremarkable . There is no pleural effusion , pulmonary edema or focal pneumonia . No pneumothorax is identified . There is no air under the diaphragm .
    OUTPUT:
    
No acute cardiopulmonary process . No evidence of free intra-abdominal air .