This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Neck, Subject name: Surgery
[{'content': 'Treatment of choice for cystic hygroma:- \nSelect and explain. \nA. Percutaneous aspiration, B. Intralesional sclerosant injection, C. En-bloc resection, D. Surgical excision', 'role': 'user'}, {'content': 'Answer: D \nExplanation: Treatment of choice for cystic hygroma is surgical excision. IOC for diagnosis: MRIQ(MRI play a crucial role in preoperative planningQ) TREATMENT Complete surgical excision is the preferred treatmentQ. Injection of sclerosing agentsQsuch as bleomycin or OK-432 (Picibanil), derived from Streptococcus pyogenes may eradicate the cystic hygroma', 'role': 'assistant'}]