This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Childhood tumors, Subject name: Pediatrics
[{'content': 'Neuroblastoma in children is characterized by all except \nSelect and explain. \nA. Proptosis, B. Hypeension, C. Hepatomegaly, D. Cafe au lait spots', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Neuroblastomas are the most common tumor of early childhood. It generally occurs in children < 5 years of age. The adrenal medulla is the typical site for a neuroblastoma. Neuroblastomas tend to metastasize widely and early. Hepatic metastasis presents as hepatomegaly. Orbits are other frequent sites of metastasis leads to proptosis, periorbital swelling/ecchymosis.', 'role': 'assistant'}]