Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is no pleural effusion or pneumothorax . There is streaky atelectasis at the left lung base . There is no focal airspace consolidation that is worrisome for pneumonia . The pulmonary vasculature is normal . The cardiac and mediastinal contours are unremarkable .
    OUTPUT:
    
No acute cardiopulmonary process .