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: Medicine
[{'content': 'Migratory necrolytic erythema is usually seen in: \nSelect and explain. \nA. Insulinoma, B. Somatostatinoma, C. Bronchogenic carcinoma, D. Glucagonoma', 'role': 'user'}, {'content': 'Answer: D \nExplanation: The characteristic rash usually stas as an annular erythema at interiginous and periorificial sites. The glucagonoma is clinically heralded by a characteristic dermatitis called migratory necrolytic erythema in 67-90% patients. Reference: Harrisons Principles of Internal Medicine, 18th Edition, Page 3067', 'role': 'assistant'}]