Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Stable cardiomegaly and tortuosity of the thoracic aorta . The pulmonary vasculature is normal . Lungs are clear except for new linear bibasilar atelectasis . . No pleural effusion or pneumothorax is seen . There are no acute osseous abnormalities . Bones are demineralized and mild compression deformity in the mid thoracic spine is unchanged .
    OUTPUT:
    
Linear bibasilar atelectasis .