Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A left chest tube has been removed in the interim . The patient is status post a right lower lobe superior segmentectomy for metastatic adenocarcinoma of colonic origin . There is a small to moderate right pleural effusion which has decreased from prior . Fluid can be seen tracking along the right chest wall and minor fissure , suggesting partial loculation . There is no pneumothorax . The cardiac and mediastinal contours are unchanged and normal . Left lung is clear .
    OUTPUT:
    
Decrease in small to moderate right pleural effusion , at least partially loculated . No pneumothorax .