Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well inflated with mild vascular congestion . No focal opacity . No pleural effusion or pneumothorax . Heart size , mediastinal contour , and hila are unremarkable . A right PICC tip is in the low SVC . Limited assessment of the osseous structures are notable for mild multilevel degenerative changes of thoracolumbar spine .
    OUTPUT:
    
1 . Right PICC tip in low SVC . 2 . Mild vascular congestion .