Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: A frontal semi upright chest radiograph demonstrates an endotracheal tube terminating in the mid thoracic trachea , intact sternal wires , a nasogastric tube terminating in the stomach , a right chest wall cardiac pacing device with the lead overlying the right ventricle , as well as a left approach cardiac L which also overlies the right ventricle . There is mild to moderate cardiomegaly , exaggerated by low lung volumes . Patchy airspace opacities bilaterally , particularly in the left base , may represent mild pulmonary edema . There is no appreciable pleural effusion or pneumothorax .
    OUTPUT:
    
Cardiac leads project over the right ventricle . There is moderate cardiomegaly and mild pulmonary edema .