Abstract：
Alopecic and aseptic nodules of the scalp (AANS) and dissecting cellulitis of the scalp (DCS) are rare, closely related conditions of young men that exclusively affect the hair-bearing scalp. We describe a 9-year-old boy who presented with a 6-year history of chronically relapsing, sterile, partially scarring nodules of the scalp and facial skin. Histopathology revealed mixed inflammatory infiltrates consisting of neutrophils, macrophages, lymphocytes, and plasma cells in the deep dermis, consistent with the morphological pattern of suppurative, partly granulomatous dermatitis. The present atypical case is characterized by prepubertal onset and facial involvement which, to our knowledge, has not yet been described before, may be included in the spectrum of \"typical\" AANS and \"typical\" DCS.
摘要：
头皮的无核和无菌结节（AANS）和头皮的解剖蜂窝织炎（DCS）很少见，与年轻人密切相关的状况，仅影响头发头皮。我们描述了一个9岁的男孩，他有6年的慢性复发病史，无菌,头皮和面部皮肤的部分瘢痕结节。组织病理学显示由中性粒细胞组成的混合炎症浸润，巨噬细胞，淋巴细胞，真皮深处的浆细胞，符合化脓的形态模式，部分肉芽肿性皮炎。目前非典型病例的特点是青春期前发病和面部受累，根据我们的知识，以前还没有描述过，可能包含在“典型”AANS和“典型”DCS的频谱中。
