Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Right IJ Swan - Ganz catheter tip overlies the right pulmonary artery distally , possibly a right upper lobe branch , and lies more distal on the prior study . Clinical correlation regarding retraction of the Swan - Ganz catheter tip is requested . Again seen is the Dobbhoff type orogastric tube , which extends beneath the diaphragm off film . Surgical ___ are seen over the upper abdomen and midline . Inspiratory volumes are slightly low . Again seen is vascular plethora consistent with CHF , though this appears slightly improved . Also again seen is increased retrocardiac density consistent with left lower lobe collapse and / or consolidation . Minimal atelectasis at the right base . Blunting of both costophrenic angles --___ possibility of small bilateral effusions can not be excluded .
    OUTPUT:
    
Tip of Swan - Ganz catheter positioned more distal lesion on today 's study --___ correlation regarding possible retraction requested . Vascular prominence consistent with CHF again seen , though slightly improved . Persistent left lower lobe collapse and / or consolidation .