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': '62 year old patient underwent radical mastectomy 10 years back. She has long standing lymphedema. Now the biopsy shows angiosarcoma. This is known as \nSelect and explain. \nA. Stewart treves syndrome, B. Monodors disease, C. Zuskas disease, D. Tietz syndrome', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Long standing lymphedema leading to angiosarcoma is known as Stewart treves syndrome.', 'role': 'assistant'}]