Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is top normal , slightly smaller than on the most recent prior study . . The mediastinal and hilar contours are unremarkable . There is no pneumothorax or pleural effusion . The lungs are well - expanded without focal consolidation . An area of band like atelectasis at the left base is again noted . There is no pulmonary edema . A left axillary atrial biventricular pacemaker defibrillator is again noted with leads in stable positions .
    OUTPUT:
    
No pneumonia or other acute process . Heart size top - normal .