This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Oncology, Subject name: Medicine
[{'content': 'Migratory necrolytic erythema is seen in \nSelect and explain. \nA. Glucagonoma syndrome, B. Peutz-Jeghers syndrome, C. Sarcoidosis, D. Amyloidosis', 'role': 'user'}, {'content': 'Answer: A \nExplanation: Glucagonoma syndrome is a rare paraneoplastic phenomenon. Necrolytic migratory erythema is often one of the first presenting symptoms. We repo a case of a 55-year-old man with a 2-year history of recalcitrant eruption. Abdominal computer tomography was performed, which revealed a tumor in the tail of the pancreas Ref Harrison 20th edition pg 544', 'role': 'assistant'}]