Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Mild enlargement of cardiac silhouette with a left ventricular predominance is noted . The aortic knob demonstrates mild atherosclerotic calcifications . Mediastinal and hilar contours are normal . Pulmonary vasculature is normal . Minimal subsegmental atelectasis is noted in the left lung base . Lungs are otherwise clear without focal consolidation . No pleural effusion or pneumothorax is present . No acute osseous abnormalities seen .
    OUTPUT:
    
No acute cardiopulmonary process .