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': 'True statement regarding rain Tumor in children is - \nSelect and explain. \nA. Mostly is infratentorial, B. Papilledema is rare, C. Is the most common tumour in children, D. Hydrocephalus is rare', 'role': 'user'}, {'content': "Answer: A \nExplanation: Brain tumors in children\n\nBrain tumors are the second most common malignancy of childhood next only to leukemia.\nBrain tumors are the most common solid cancer of childhood.\n\n\nOver two-thirds of brain tumors are infratentoterial.\n\n\nMost of these tumor occur near the midline -> commonly obstruct CSF circulation and cause hydrocephalus early in disease. These can also cause I ICT and papilledema (In infants papilIedema may be absent because of open sutures and bulging fontanelle).\nThere is age related differences in primary location of tumor -\n\n\nInfant (Is' year of life)\xa0 \xa0 \xa0-\xa0 \xa0 \xa0 \xa0 4 Mostly supratentorial, most common are choroidal plexus tumor and teratoma\n1-10 years\xa0 \xa0 \xa0 \xa0 \xa0 \xa0 -\xa0 \xa0 \xa0 \xa0 \xa0 \xa0 \xa0 Mostly infratentorial, most common are medulloblastoma and cerebellar astrocytoma (juvenile pilocytic astrocytoma).\nAfter 10 years\xa0 \xa0 \xa0 \xa0 -\xa0 \xa0 \xa0 \xa0 \xa0 \xa0mostly supratentorial, most common is diffUse astrocytoma.", 'role': 'assistant'}]