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: Surgery
[{'content': 'Which of the following tumors give rise to white reflex in pupil? \nSelect and explain. \nA. Squamous cell carcinoma, B. Neurofibroma, C. Retinoblastoma, D. Keratoacanthoma', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Retinoblastoma is a multicentric malignant tumour of the retina, which can be bilateral.\nSome are sporadic, but many are hereditary.\nChildren with a family history should be carefully monitored from birth.\nIt is often not spotted until the tumour fills the globe and presents as a white reflex in the pupil or as a squint.', 'role': 'assistant'}]