This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Surgery
A newborn within few hours of bih, developed bile stained vomiting and epigastric distention. On examination abdomen is scaphoid with visible peristalsis in the upper abdomen. Per rectal examination shows no stool in the rectum. Xray abdomen shows air trapped in stomach and proximal duodenum. What is the treatment of choice in this case? 
Select and explain. 
A. Ramstedt pyloromyotomy, B. Duodenoduodenostomy, C. Conservative management, D. Barium enema and air enema
B: Duodenoduodenostomy
Answer: B: Duodenoduodenostomy 
Explanation: This newborn is showing features of duodenal atresia. The most common method of treatment of duodenal atresia is duodenoduodenostomy or duodenojejunostomy. Duodenal atresia is associated with congenital defects such as: - Down's syndrome - Cardiovascular malformation - Annular pancreas - Malrotation - Esophageal atresia