Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is mildly enlarged . The aorta is mildly tortuous . Mediastinal and hilar contours are within normal limits otherwise . Pulmonary vasculature is normal . Linear opacities within the left lung base likely reflect subsegmental atelectasis or scarring . Remainder of the lungs are clear without focal consolidation . No pleural effusion or pneumothorax is present . Eventration of the right hemidiaphragm is noted . There is mild loss of height anteriorly of a mid thoracic vertebral body .
    OUTPUT:
    
No acute cardiopulmonary process .