Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal upright views of the chest were obtained . A right cardiac pacemaker obscures the right lung base . Low lung volumes result in bronchovascular crowding . There is no focal consolidation , pleural effusion or pneumothorax . Left basilar atelectasis is seen . Pulmonary vasculature is engorged without overt pulmonary edema . Cardiac and mediastinal silhouette are unchanged with mild cardiomegaly and aortic tortuosity . Cardiac pacemaker leads are in satisfactory position .
    OUTPUT:
    
No pneumonia , edema , or effusion .