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': 'Cicatrising alopecia with perifollicular blue-gray patches hyperpigmentation is most commonly associated with: \nSelect and explain. \nA. Pitting of nails, B. Whitish lesions in the buccal mucosa, C. Ahritis, D. Discoid plaques in the face', 'role': 'user'}, {'content': 'Answer: B \nExplanation: B i.e. Whitish lesions in the buccal mucosa Cicatrising alopecia with perifollicular erythema / hyperpigmentation/ hyperkeratosis & scaleQ are seen in lichen planus (lichen planopilaris or spinosus et folliculitis decalvans). Whereas, Ciratrising alopecia with follicular accentuation/ widening/ dilation and keratotic plugging (i.e dilated hyperpigtnented follicular orifices)Q. are seen in DLE.', 'role': 'assistant'}]