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: Skin
[{'content': '"Shawl" sign is seen in? \nSelect and explain. \nA. Psoriasis, B. Dermato polymyositis, C. Sun burn, D. Skin Cancer', 'role': 'user'}, {'content': 'Answer: B \nExplanation: Ans. B. Dermato polymyositisCutaneous features include nail fold and gingival margin telangiectasia, palmar hyperkeratosis ("mechanic\'s hands"), and a poikilodermatous (dyspigmentation and telangiectasia) eruption over the shoulder girdle ("shawl sign"). Cutaneous features may precede the systemic illness.', 'role': 'assistant'}]