Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Single frontal view of the chest was obtained . Right atrial , right ventricular , and left ventricular pacer defibrillator leads of a left chest wall generator terminate in stable position . Moderate sized right pleural effusion is unchanged . No pneumothorax or evidence for pulmonary edema . Moderate cardiomegaly is stable .
    OUTPUT:
    
Unchanged moderate right pleural effusion .