Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Heart size is normal . The aorta is tortuous . Mediastinal and hilar contours are otherwise unremarkable . Pulmonary vasculature is normal . Minimal patchy left basilar opacity likely reflects atelectasis , without focal consolidation . No pleural effusion or pneumothorax is present . No acute osseous abnormalities detected .
    OUTPUT:
    
Minimal left basilar atelectasis . Otherwise , no acute cardiopulmonary process .