Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest . The left - sided pacemaker is seen and unchanged in position . There is severe cardiomegaly , as seen on prior study . There is no focal consolidation , pleural effusion , or pneumothorax . The mediastinal and hilar contours are normal and unchanged .
    OUTPUT:
    
Unchanged severe cardiomegaly . No evidence of pneumonia or pulmonary edema .