Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lung volumes are normal . Normal size of cardiac silhouette . No pleural effusions . No focal parenchymal opacity suggesting pneumonia . No pulmonary edema . No pneumothorax . Normal hilar and mediastinal contours . Surgical clips in right upper quadrant consistent with prior cholecystectomy .
    OUTPUT:
    
No hilar mass or lymphadenopathy . No acute cardiopulmonary process .