This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Eczema and related disorders, Subject name: Dental
[{'content': "Tiny cafe-au-lait spots in the axillae in neurofibromatosis patients is called as ? \nSelect and explain. \nA. Button hole sign, B. Osler's sign, C. Darrier's sign, D. Crowe's sign", 'role': 'user'}, {'content': "Answer: D \nExplanation: Crowe's sign: In Neurofibromatosis freckling occurs frequently in the axillae. Osler's sign: scleral discoloration in Alkaptonuria. Button hole sign: In type 1 neurofibromatosis", 'role': 'assistant'}]