Abstract: Hui Yun*, Li Hailing, Li Zhiliang, Xu Haoxiang, Li Chengrang, Zhang Guoyi, Wang Baoxi. *Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College, Nanjing 210042, China Corresponding author: Wang Baoxi, Email: wangbx@ncstdlc.org 【Abstract】 Objective To analyze the clinical characteristics and treatment of acne inversa. Methods Seventeen outpatients with acne inversa were collected in the Institute of Dermatology, Chinese Academy of Medical Sciences and Peking Union Medical College from January 1, 2012 to December 31, 2012. The general condition, clinical feature and treatment of these patients were retrospectively analyzed. Results All the patients were male with the age at onset being about 20 years and disease duration varying from 2 to 50 years. Characteristic clinical manifestations were recurrent tender inflammatory papules, nodules, abscesses, fistulae and sinus tracts in the neck, axillary fossa, groin, perineum and buttocks. Among these patients, 10 had a family history and seven were sporadic with mild symptoms. Oral tretinoin combined with antibiotics were the main treatment, and surgical treatment was usually used for severe patients. Conclusions Acne inversa is mainly manifested as abscess, sinus and scars in areas bearing apocrine sweat glands, and therapeutic regimen should be selected according to the severity of lesions.

Key words: Acne inversa, Hidradenitis suppurativa, Retrospective studies