This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Nervous System, Subject name: Radiology
[{'content': 'A 9-year-old female child with history of head ache and visual disturbance. What could be possible diagnosis? \nSelect and explain. \nA. Craniopharyngioma, B. Pituitary macroadenoma, C. Hypothalamic Hamartoma, D. Optic glioma', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Ans. a. CraniopharyngiomaCRANIOPHARYNGIOMAIt is most commonly seen in children and diagnosed between 5-12 years of age.Incidence rate 7-10% of the population.Calcification on X-ray is the minimal invasiveness.Symptoms includes:Bitemporal hemianopsiaHeadachePanhypopituitarismGrowth failureVomitingConfusionDelayed pubertyRadiological findings: Calcified lesion seen above the sella turcica.Treatment: Surgery and radiation; no role for chemotherapy', 'role': 'assistant'}]