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: Pathology
[{'content': 'Fibrous histiocytoma is classified as - \nSelect and explain. \nA. Hemangiopericytoma, B. Sclerosing haemangioma, C. Angiomyolipomas, D. Angiomyosarcoma', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Most benign fibrous histiocytomas consist of a proliferation of bland spindle cells, arranged in a storiform pattern. These are referred to - Dermatofibromas\nOthers may contain numerous blood vessels and hemosiderin deposition. These are referred to as Sclerosing Hemangioma', 'role': 'assistant'}]