This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Infection, Subject name: Medicine
[{'content': 'The dental condition illustrated is usually associated with a congenital infectious disease. The teeth are characterized by centrally notched, widely spaced, peg-shaped upper central incisors and molars that have poorly developed cusps. Which of the following is the most likely diagnosis? \nSelect and explain. \nA. congenital rubella, B. congenital syphilis, C. congenital toxoplasmosis, D. congenital HIV', 'role': 'user'}, {'content': 'Answer: B \nExplanation: (b) Source: (Kasper, p. 981) The figure illustrates Hutchinson\'s teeth, which is a manifestation of late congenital syphilis. This may be associated with cardiovascular and neurologic manifestations as well as "saddle nose" and "saber shins."', 'role': 'assistant'}]