Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Endotracheal tube terminates 3 .7 cm above the carina . NG tube terminates below the diaphragm . Heart size and cardiomediastinal contours are normal . Blunting of the left costophrenic angle is noted . . Linear opacities in left lung base are consistent with scarring or atelectasis . Increased interstitial markings suggest either edema or chronic interstitial lung disease . A vague opacity in the periphery of the right upper lung at the level of the second anterior rib , suboptimally evaluated on this single frontal view . No focal consolidation or pneumothorax .
    OUTPUT:
    
1 . Moderate left pleural effusion or pleural thickening with adjacent linear atelectasis and or scar . 2 . Upper and mid lung reticular opacities could reflect acute interstitial edema or chronic interstitial lung disease . 2 . Possible right upper lobe nodule versus scar , for which dedicated PA and lateral chest radiographs are recommended following extubation .