Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest views were obtained with patient in upright position . The heart size is within normal limits . No typical configurational abnormality is identified . Thoracic aorta and mediastinal structures are unremarkable . The pulmonary vasculature is normal . 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 . Skeletal structures of the thorax grossly within normal limits . Specifically , there is no evidence of hilar adenopathy or widening of the mediastinal structures in this patient with evidence of widespread adenopathy in the neck region as shown on previous neck CT examination dated ___ . There exists no prior chest examination available for comparison .
    OUTPUT:
    
Chest findings within normal limits .