Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Minor linear opacities within the left lung base are seen , most likely due to atelectasis / scarring . No new focal consolidation is identified . There is no pneumothorax . No congestion , edema or large pleural effusions are evident . Mediastinal and hilar contours are within normal limits . Mild cardiomegaly is unchanged from prior . Calcifications of the thoracic aorta are stable . Degenerative changes are seen along the thoracic spine . The thoracolumbar junction / upper lumbar spine is not well evaluated on this study and compression of vertebral bodies in that region can not be excluded . No displaced fracture is seen .
    OUTPUT:
    
No acute cardiopulmonary process . The thoracolumbar junction / upper lumbar spine is not well evaluated on this study and compression of vertebral bodies in that region can not be excluded .