Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Slightly rotated positioning . An ET tube is present , tip approximately 5 .4 cm above the carina . An NG tube an NG type tube is present , tip overlying the gastric fundus , beneath the diaphragm . An IABP is present , extending from an inferior approach . The aortic knob itself is not well - defined , but the radiopaque tip probably lies at or immediately below the lower edge of the aortic knob . There are dense , confluent opacities in both upper zones , extending into the mid / lower zones , but with sparing of both lung bases . The degree of confluence is greater on the left . No effusion is identified . Cardiomediastinal silhouette is at the upper limits of normal , but not frankly enlarged . No pneumothorax is detected .
    OUTPUT:
    
1 . ET and NG tubes , as described . 2 . IABP radiopaque tip probably lies at or immediately below the inferior edge of the aortic knob . 3 . Dense left - greater - than - right opacities , with upper lobe predominance and sparing of the bases . While this could represent an atypical distribution of CHF , including changes associated with valve dysfunction , in the appropriate clinical setting , the upper lobe predominance would also raise the question of infectious or inflammatory etiologies .