Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A portable frontal chest radiograph demonstrates normal cardiomediastinal silhouette and well - aerated lungs which are clear . There is no focal consolidation , pleural effusion , or pneumothorax . Surgical material overlying the left heart border is noted . The visualized upper abdomen is unremarkable .
    OUTPUT:
    
No acute cardiopulmonary process .