Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac silhouette size is top normal . Slight tortuosity of thoracic aorta is present . The mediastinal and hilar contours are unremarkable . The pulmonary vasculature is normal . Subsegmental atelectasis is seen in the right lung base . No focal consolidation , pleural effusion or pneumothorax is present . There are no acute osseous abnormalities .
    OUTPUT:
    
Minimal right basilar atelectasis . Otherwise , no acute cardiopulmonary process .