This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Respiratory system, Subject name: Pediatrics
[{'content': 'A neonate presents with respirotory distress with enlargement of left upper lobe of lung and mediastinal shift towards the right. What is the most likely diagnosis ? \nSelect and explain. \nA. Cong lobar emphysema, B. Alpha 1 antitrypsin deficiency, C. Pneumonia, D. Cystic fibrosis', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Unilateral hyperinflated lung lobar emphysema foreign body lymph node this is due to paial obstruction of bronchus expansion ofchest with inspiration on affected side will be less. Ref : PAEDIATRICS CLINICAL EXAMINATION BY A.SANTHOSH KUMAR,PG NO:365,4TH EDITION', 'role': 'assistant'}]