Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP upright and lateral views of the chest provided . Left chest wall AICD again seen with single lead extending into the right ventricle region . Cardiomegaly is mild . There is a left - sided coronary stent visualized . Lungs are clear . Right - sided pleural effusion is best seen on the lateral view which is slightly decreased from prior exam . Mediastinal contour is stable and normal . Bony structures are intact .
    OUTPUT:
    
Small right pleural effusion .