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': "Cystic hygroma is seen in - \nSelect and explain. \nA. Turners syndrome, B. Klinefelter syndrome, C. Marfans syndrome, D. Down's syndrome", 'role': 'user'}, {'content': 'Answer: A \nExplanation: There may be cystic Swelling at the nape of the neck in Turner syndrome.\nThis due to markedly distended lymphatic Channels, producing a so-Called Cystic hygroma.', 'role': 'assistant'}]