Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Tracheostomy tube is again seen , with the tip approximately 3 cm above the carina . Left - sided subclavian central venous catheter is present , with the tip at the confluence of the brachiocephalic veins . The cardiac and mediastinal silhouettes remain unchanged . There appeared to be coronary artery stent . There appears to be a small left - sided pleural effusion , unchanged . Otherwise , no focal pulmonary opacities or evidence of pneumothorax . Mild vascular calcifications of the aorta . Midline ___ are seen in the upper abdomen . A gastrostomy tube is present .
    OUTPUT:
    
Small left - sided pleural effusion , unchanged .