This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Miscellaneous, Subject name: Surgery
[{'content': 'A 32-year-old man presents with abdominal pain. On examination, he is noted to have pigmented spots in the buccal region. He is diagnosed to have Peutz-Jeghers syndrome, which also results in what? SELECT ONE. \nSelect and explain. \nA. Optic neuroma, B. Constricted pupil, C. Cerebellar dysfunction, D. Hamartomatous polyps in the small intestine', 'role': 'user'}, {'content': 'Answer: D \nExplanation: In Peutz-Jegher syndrome, pigmented melanin spots are found in the buccal and perineal region. The lesions are flat and greenish black in the buccal region and remain after puberty. Pigmentation is found inside the mouth, nostrils, palms, and feet. Usually at about 20-30 years of age, hamartomatous polyps are found in the small intestine, but other parts of the alimentary tract may also be involved. Adenocarcinoma develops in 23% of patients.', 'role': 'assistant'}]