Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: ET tube terminates approximately 6 .6 cm above the carina . An NG tube tip overlies the gastric fundus . The heart is not enlarged . There is mild - to - moderate bilateral perihilar vascular congestion . Diffuse heterogeneous opacities throughout the lungs bilaterally -- in the appropriate clinical setting , this are likely secondary to interstitial edema . Retrocardiac air bronchograms are consistent with either alveolar edema or collpase and / or conslidation . There is no large pleural effusion . No obvious pneumothorax , though extreme upper lung apices are excluded from the film .
    OUTPUT:
    
1 . ET tube terminates approximately 6 .1 cm above the carina . 2 . Diffusely increased interstitial markings . In the appropriate clinical setting , thse could be due to CHF .