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': "Which is the commonest abdominal mass in neonate - \nSelect and explain. \nA. Wilm's tumor, B. Polycystic kidney, C. Neuroblastoma, D. Rhabdomyosarcoma", 'role': 'user'}, {'content': 'Answer: C \nExplanation: Ans. is \'c\' i.e., Neuroblastoma The commonest intra-abdominal tumor in first two years of life Neuroblastoma The commonest intra-abdominal tumor between 2"d to 5th year of life - Wihn\'s tumor The commonest intra-abdominal tumor in children (no age specification) Neuroblastoma (Wilm\'s tumor is the second most common abdominal tumor in children) Remember: The commonest cause of abdominal mass in Newborn is : Multiple dysplastic kidneys (if neoplasm or tumor has not been mentioned when asking for the commonest intra-abdominal mass, the answer will be multiple dysplastic kidneys)', 'role': 'assistant'}]