头皮慢性单纯性苔藓：皮肤镜下的扫帚纤维；组织病理学上的齿轮征和汉堡包征。
Lichen Simplex Chronicus on the Scalp: Broom Fibers on Dermoscopy; Gear Wheel Sign and Hamburger Sign on Histopathology.
作者信息
Agrawal Sandip, Dhurat Rachita, Ghate Smita, Sharma Aseem, Surve Ravina, Daruwalla Sanober
机构信息
Department of Dermatology, Lokmanya Tilak Municipal Medical College and General Hospital, Sion, Mumbai, Maharashtra, India.
出版信息
Indian Dermatol Online J. 2020 May 10;11(3):401-403. doi: 10.4103/idoj.IDOJ_350_19. eCollection 2020 May-Jun.
Lichen simplex chronicus (LSC) is characterized by lichenification of the skin because of primary excessive scratching. Herein, we present two cases of scalp LSC with a patch showing localized hair loss and paroxysmal severely itching on that area. Dermoscopy examined the presence of broom hair fibers while histopathological examination revealed gear wheel sign, hair shafts split in two (the hamburger sign), and decrease in the size of the sebaceous glands.
慢性单纯性苔藓（LSC）的特征是由于原发性过度搔抓导致皮肤苔藓化。在此，我们报告两例头皮LSC病例，其斑块表现为局部脱发并伴有该区域阵发性剧烈瘙痒。皮肤镜检查发现有帚状毛发纤维，而组织病理学检查显示有齿轮征、毛干一分为二（汉堡征）以及皮脂腺大小减小。
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