This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Neoplasia, Subject name: Surgery
[{'content': 'Stewart-Treves syndrome is used to described development of - \nSelect and explain. \nA. Lymphangiosarcoma, B. Rhabdomyoma, C. Angiosarcoma, D. Mesothelioma', 'role': 'user'}, {'content': "Answer: A \nExplanation: Ans. is 'a' i.e., Lymphangiosarcoma Stewart-Treves' syndrome:* Ulceration, non-healing bruises and raised purple-red nodules in patients with lymphatic disorders, should lead to suspicion of malignancy.* Lymphangiosarcoma was originally described in postmastectomy oedema (Stewart-Treves' syndrome) and affects around 0.5 per cent of patients at a mean onset of ten years.* Lymphangiosarcoma can develop in any long-standing lymphedema.Malignancies associated with lymphoedema* Lymphangiosarcoma (Stewart - Treves syndrome)* Malignant melanoma* Kaposi's sarcoma (HIV)* Malignant fibrous histocytoma* Squamous cell carcinoma* Basal cell carcinoma* Liposarcoma* Lymphoma", 'role': 'assistant'}]