Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single portable semi upright frontal chest radiograph demonstrates new left subclavian CVL tip within the mid SVC . Mildly hypoinflated lungs with perihilar interstitial prominence consistent with vascular crowding . Stable reticular opacities within the lungs . No pleural effusion or pneumothorax . Calcification of the left apical pleural surface again noted . No focal opacity . Heart size , mediastinal contour , and hila are unremarkable . Limited assessment of the osseous structures are unremarkable and upper abdomen is within normal limits .
    OUTPUT:
    
1 . Left subclavian CVL tip within mid SVC . No pneumothorax . 2 . Hypoinflated lungs with persistent bilateral reticular opacities suggestive of mild interstitial fibrosis .