Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest views were obtained with patient in upright position . Comparison is made with the next preceding chest examination dated ___ . The heart size is normal . No typical configurational abnormality is seen . Thoracic aorta and mediastinal structures are unremarkable . The pulmonary vasculature is not congested . No signs of acute or chronic parenchymal infiltrates are present and the lateral and posterior pleural sinuses are free . No evidence of pneumothorax in the apical area on frontal view . Skeletal structures of the thorax are grossly within normal limits . The chest findings are unaltered and remained normal . On the preceding examination of ___ , the patient had clinical suspicion for rib fracture , which , however , could not be identified on the routine chest examinations . Dedicated rib films were not obtained .
    OUTPUT:
    
No evidence of remaining pneumonic infiltrate in right middle lobe . It is assumed that the chest examination in ___ has been performed at another institution .