A woman in her 50s with biopsy-proven scalp lichen planopilaris (LPP) presented with an increasing number of slightly pruritic facial papules that coincided with the start of her hair loss condition (Figure, A). She denied a history of severe acne or other inflammatory skin disorders. The patient had no health problems and only had a distant medical history of an appendectomy and an oophorectomy. The only medication she was taking was hydroxychloroquine 200 mg twice daily that was initiated as treatment of her LPP and did not improve the appearance or symptoms of her facial papules. On physical examination, she had numerous 1-mm skin-colored grouped monomorphic noninflammatory papules on the bilateral temples, the bilateral cheeks, and the chin. A 3-mm punch biopsy specimen was obtained for histopathologic examination of a representative lesion on the right chin (Figure, B and C).

一名50多岁的妇女经活检证实为头皮扁平苔藓（LPP），并伴有越来越多的轻度瘙痒性面部丘疹，这与脱发的开始相吻合（图A）。她否认有严重痤疮或其他炎症性皮肤病的病史。该患者没有健康问题，只有远距离阑尾切除术和卵巢切除术的病史。她服用的唯一药物是每天两次两次的羟氯喹200毫克，开始治疗LPP，但并没有改善面部丘疹的外观或症状。体检时，她在双侧太阳穴，双侧脸颊和下巴上有许多1毫米肤色的单形非炎性丘疹分组。