Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The left subclavian approach PICC tip projects over the expected region of the mid SVC . Since ___ , a left pleural effusion appears to have resolved . Bibasilar opacities also have essentially resolved with perhaps minimal left lower lobe residual opacity . No pneumothorax . The heart is normal in size . Mediastinal contours are unchanged . Multilevel degenerative changes in the thoracic spine are moderate .
    OUTPUT:
    
1 . Left PICC tip ends in the mid SVC . 2 . Left pleural effusion has resolved . 3 . Improved bibasilar parenchymal opacities with perhaps minimal residual in the left lower lobe .