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KMID : 1038220190460060566
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Archives of Plastic Surgery
2019 Volume.46 No. 6 p.566 ~ p.571
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Earwax of patients with hidradenitis suppurativa: A retrospective study
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Shibuya Yuka
Morioka Daichi
Nomura Misako
Zhang Zhuo
Utsunomiya Hiroki
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Abstract
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Background: In Western nations, hidradenitis suppurativa (HS) typically affects the apocrine gland-bearing skin of people of African origin, women, smokers, and individuals with obesity. The clinical characteristics of HS in Korea and Japan, however, are reportedly different from those in the West. We therefore hypothesized that wet earwax is associated with HS because most East Asian people are genetically predisposed to produce dry earwax.
Methods: The medical charts of 53 Japanese patients with HS were reviewed retrospectively.
Results: Unlike the results of surveys conducted in Western nations, most of our patients were men (72%), whose buttocks were the most commonly affected site. Apocrine gland-bearing areas, such as the axilla, were affected less often. The proportion of HS patients with wet earwax was 51%, which was substantially higher than that found in the general Japanese population. Moreover, when patients with gluteal HS were excluded, the proportion of patients with wet earwax became even higher (68%).
Conclusions: Although the etiology of HS is unknown, our survey indicated that HS in apocrine gland-bearing skin, such as the axillary and anogenital areas, may be associated with wet earwax. As this study was conducted in a limited clinical setting, a nationwide, multicenter survey is warranted to clarify the clinical characteristics of HS in Japan.
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KEYWORD
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Apocrine gland, Cerumen, Hidradenitis suppurativa, Medical chart review, Race factors
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