Question:
Cicatrising alopecia with perifollicular blue-gray patches is most commonly associated with:
Cicatrising alopecia with perifollicular blue-gray patches is most commonly associated with:
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Scarring alopecia with violaceous follicular rims is lichen planopilaris, part of the lichen planus spectrum.
Updated On: Jun 24, 2026
- Nail dystrophy
- Whitish lesion in the buccal mucosa
- Arthritis
- Discoid plaques on the face
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The Correct Option is B
Solution and Explanation
Step 1: Interpret the scalp finding. Cicatrising (scarring) alopecia with perifollicular violaceous or blue-gray patches and follicular plugging is the picture of lichen planopilaris, the follicular variant of lichen planus.
Step 2: Recall the multisystem links of lichen planus. Lichen planus characteristically involves the oral mucosa, where it produces a lacy white reticulate pattern (Wickham striae) on the buccal mucosa.
Step 3: Match the best association. Because lichen planopilaris is part of the lichen planus spectrum, the most commonly associated finding is the whitish reticulate lesion of the buccal mucosa.
Step 4: Exclude the others. Nail dystrophy and arthritis fit psoriasis, and discoid plaques on the face fit discoid lupus erythematosus (which is the other major cause of scarring alopecia but does not give buccal white lesions).
Conclusion: The association is a whitish lesion in the buccal mucosa. The printed key (B) is medically correct.
Step 2: Recall the multisystem links of lichen planus. Lichen planus characteristically involves the oral mucosa, where it produces a lacy white reticulate pattern (Wickham striae) on the buccal mucosa.
Step 3: Match the best association. Because lichen planopilaris is part of the lichen planus spectrum, the most commonly associated finding is the whitish reticulate lesion of the buccal mucosa.
Step 4: Exclude the others. Nail dystrophy and arthritis fit psoriasis, and discoid plaques on the face fit discoid lupus erythematosus (which is the other major cause of scarring alopecia but does not give buccal white lesions).
Conclusion: The association is a whitish lesion in the buccal mucosa. The printed key (B) is medically correct.
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