This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: General pathology, Subject name: Pathology
[{'content': 'Flexner-Wintersteiner rossette is seen in- \nSelect and explain. \nA. Hepatoblastoma, B. Nephroblastoma, C. Neuroblastoma, D. Retinoblastoma', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Harshmohan textbook of pathology 7th edition the microscopic structures of retinoblastoma characteristically arranged in rossettes. The rossettes are of 2 types 1. Flexner Wintersteiner rossettes characterised by small tumor cells arranged around a lumen with their nuclei away from the lumen. 2. Homer Wright rosettes- having radial arranarrangement of the tumor cells around the central neurofibrillar structure..', 'role': 'assistant'}]