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: Pediatrics
[{'content': 'The commonest cause of intestinal obstruction in children is – \nSelect and explain. \nA. Intussusception, B. Volvulus, C. Hernia, D. Adhesions', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Intussusception \n\nIntussusception occurs when a portion of the alimentary tract is telescoped into an adjacent segment.\nIt is the most common cause of intestinal obstruction between 3 months and 6 years of age.\nIt is more common in males.\nIntusssception may be →\n\ni) Ileocolic (most common)\xa0\xa0\xa0\xa0\nii) Cecocolic\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\xa0\niii) Ileoileal\n\nThe upper portion of bowel that invaginates into lower portion is called intussusceptum.\nThe lower portion which receives telescoped upper portion is called intussuscipiens.', 'role': 'assistant'}]