Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Left PICC tip terminates within the left brachiocephalic vein . Heart size is normal . The aorta remains unfolded . The mediastinal and hilar contours are normal . Subsegmental atelectasis versus linear scarring is present within the lingula . The lungs are otherwise clear . No pleural effusion , focal consolidation or pneumothorax is seen . No acute osseous abnormalities detected . There are mild degenerative changes in the mid to lower thoracic spine .
    OUTPUT:
    
Left PICC tip in the left brachiocephalic vein . No acute cardiopulmonary abnormality .