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: Skin
[{'content': "Gottron's papules/ spots are pathognomic of: March 2013 \nSelect and explain. \nA. Myasthenia gravis, B. Dermatomyostis, C. Dermatitis herpetiformis, D. Atopic dermatitis", 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. B i.e. Dermatomyositis', 'role': 'assistant'}]