This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Papulosquamous disorders, Subject name: Dental
Cicatrising alopecia with perifollicular blue- gray patches is most commonly associated with 
Select and explain. 
A. erythematous scaly plaques, B. Whitish lacy lesions in the buccal mucosa, C. Ahritis, D. Discoid plaques in the face
B: Whitish lacy lesions in the buccal mucosa
Answer: B: Whitish lacy lesions in the buccal mucosa 
Explanation: cicatrising alopecia with perifollicular pigmentation is characteristic of lichen planus involving scalp. seen in association with whitish lacy lesions in buccal mucosa-'wickhams straie' erythematous scaly plaques with ahritis is seen in psoriasis but it is not associated with cicatricial alopecia of scalp with peri follicular pigmentation discoid plaques are seen in discoid lupus erythematosus. this is associated with cicatricial alopecia of scalp with follicuar plugging - carpet tack sign positive on removal of thick scale. IADVL text boook of dermatology