小结
定义
斑秃是一种在美国人群中发生率近2%自身免疫性疾病。[1] 炎症细胞攻击毛囊，从而阻止毛发生长。通常，可观察到一小块圆形脱发区。
[Figure caption and citation for the preceding image starts]: 斑秃由Paradi Mirmirani, MD提供 [Citation ends]. 这种斑片状脱发可能会自发再生。在另一些病例中，可能出现广泛的斑状脱发，更为罕见的病例甚至出现全头皮脱发和身体毛发脱落（普秃）。
病史和体格检查
诊断性检查
治疗流程
撰稿人
作者
Professor of Dermatology/Medicine (Retired)
David Geffen School of Medicine
UCLA
Los Angeles
CA
利益声明
RAS is currently an honorary member of the National Alopecia Areata Foundation (NAAF) clinical scientific advisory board.
Dr Richard A. Strick would like to gratefully acknowledge Dr Jack Green and Dr Paradi Mirmirani, previous contributors to this monograph. JG is an author of a reference cited in this monograph. PM declares that he has no competing interests.
同行评议者
Professor and Chair
Department of Dermatology
University of Minnesota
Minneapolis
MN
利益声明
MH declares that she has no competing interests.
Associate Professor
Department of Dermatology
University Hospital of Zurich
Zurich
Switzerland
利益声明
RMT is an author of a number of references cited in this monograph.
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