Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiograph demonstrate interval retraction of a right PICC tip which is now within the right mid subclavian vein . For optimal positioning in the mid to lower SVC the catheter must be advanced 6 - 7 cm . Persistently symmetrically hypoinflated lungs with stable bilateral perihilar interstitial opacities consistent with vascular crowding . Stable retrocardiac atelectasis with stable small left pleural effusion . Significant decrease in size of a previously identified loculated left pleural effusion along the lateral left chest wall . No right pleural effusion . Stable air - fluid level seen on lateral chest radiograph is consistent with known hiatal hernia . No new focal opacity . No pneumothorax . Limited assessment upper abdomen is unremarkable and visualized osseous structures are notable for prior healed left femoral head fracture , unchanged from previous examination . Kyphosis again noted with diffuse osteopenia and multiple thoracic compression fractures , unchanged from previous examination .
    OUTPUT:
    
1 . Mild Right PICC with tip within the mid right subclavian vein . 2 . Hypoinflated lungs . 3 . Stable retrocardiac atelectasis and small left pleural effusion with significant decrease in size of previously identified loculated left pleural effusion . 4 . Small hiatal hernia .