Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: In comparison to the chest radiographs obtained 3 hours prior , the small , left pleural effusion has decreased in size . No pneumothorax . Of note , there is an approximately 2 x 3 cm right paratracheal nodule . In comparison to the recent PET - CT , this may be a summation of an FDG avid peritracheal lymph node and the adjacent azygos vein . No other significant changes from this morning are identified .
    OUTPUT:
    
Interval decrease in small , left pleural effusion without acute complications of thoracentesis .