Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral radiographs of the chest demonstrate streaky opacities at the bilateral bases , consistent with atelectasis . There is no pneumothorax . There is a small left - sided pleural effusion . The cardiomediastinal hilar contours are unchanged . The heart is top normal in size .
    OUTPUT:
    
No acute cardiopulmonary process .