This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Vasculitis, Subject name: Pathology
[{'content': 'A 3-year-old boy is brought by his parents to the emergency depament because they are concerned that he has had a high fever for several days. On examination, the boy has conjunctival and oral erythema. He has palpable cervical lymphadenopathy and erythema of his palms and soles. What is a potential life-threatening complication of this disorder? \nSelect and explain. \nA. Aneurysm of the abdominal aoa, B. Aneurysm of the coronary aeries, C. Dissection of the thoracic aoa, D. Rupture of a berry aneurysm', 'role': 'user'}, {'content': 'Answer: B \nExplanation: The patient presents with mucocutaneous lymph node syndrome, or Kawasaki disease. It is often a self-limiting condition, although as many as 20% of patients develop an aneurysm of the coronary vessels. Dissection of the thoracic aoa is associated with hypeension. Rupture of a berry aneurysm can result in a subarachnoid hemorrhage. Aneurysm of the abdominal aoa is associated with atherosclerosis.', 'role': 'assistant'}]