Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: An ET tube remains present , tip approximately 4 .7 cm above the carina . An NG type tube is also present , tip beneath diaphragm , off film . Left subclavian PICC line is again noted overlying the proximal SVC . Rotated positioning . No definite change in the overall cardiac cardiomediastinal silhouette or prominent pulmonary arteries . Vascular plethora and and increased interstitial markings are compatible with CHF which may be slightly improved . Increased retrocardiac density , consistent with left lower lobe collapse and / or consolidation , is also slightly improved . Minimal blunting of the right costophrenic angle . Small left effusion can not be excluded . Ovoid focal opacity overlying left upper zone laterally is new compared with the prior study and lies an area of overlying tubing --___ artifact outside of the the patient ?
    OUTPUT:
    
1 . Cardiomediastinal silhouette is grossly unchanged . 2 . Continued CHF with interstitial edema , though there is evidence of slight improvement . 3 . Interval improvement in left lower lobe collapse and / or consolidation .