Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is a dual - lead pacemaker / ICD device in place with leads terminating in the right atrium and ventricle , respectively . The heart is mildly enlarged . The mediastinal and hilar contours appear unchanged . The lungs are hyperinflated . There is no pleural effusion or pneumothorax . There are mildly prominent suprahilar opacities which suggest mildly engorged pulmonary vascularity but little if at all changed since the earlier comparison study , suggesting mild pulmonary venous hypertension without focal opacities to suggest pneumonia . Frank pulmonary edema has resolved since the more recent prior examination . Patchy retrocardiac opacity is similar to the prior examinations , most suggestive of persistent minor atelectasis or scarring .
    OUTPUT:
    
No definite evidence of pneumonia .