Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Cardiac silhouette size is mildly enlarged . The aorta is tortuous . Hilar contours are normal . Pulmonary vasculature is not engorged . Linear opacities within the left lung base are compatible with subsegmental atelectasis . No focal consolidation , pleural effusion or pneumothorax is present . The osseous structures are diffusely demineralized with H - type configuration of the vertebral bodies diffusely .
    OUTPUT:
    
No acute cardiopulmonary abnormality .