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: Ophthalmology
[{'content': "The differential diagnosis of retinoblastoma would include all except. \nSelect and explain. \nA. Persistent hyperplastic primary vitreous, B. Coat's disease., C. Retinal astrocytoma, D. Retinal detachment", 'role': 'user'}, {'content': 'Answer: D \nExplanation: D i.e. Retinal Detachment Retinal detachment would never be included in differential diagnosis of retinoblastomaQ as their age of presentation is quiet different.', 'role': 'assistant'}]