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KMID : 0363220090470010063
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Korean Journal of Dermatology
2009 Volume.47 No. 1 p.63 ~ p.66
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A Case of Bullous Lichen Sclerosus et Atrophicus
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Hwang Chul
Cho Ah-Young
Lee Young
Seo Young-Joon
Park Jang-Kyu
Lee Jeung-Hoon
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Abstract
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Lichen sclerosus et atrophicus (LSA) is a benign, chronic inflammatory dermatosis that usually affects the female
genitalia. It may also involve any other areas, and it is rarely seen on the face, oral mucosa and palm and sole. The
lesion of LSA primarily occurs as a whitish or yellowish papule, and later it becomes a well-defined plaque.
However, bullous LSA, which has a localized or generalized form, occurs as a rare variant of LSA. The exact
prevalence of bullous LSA is uncertain. It generally involves not only the genitalia, which is vulnerable to trauma,
but also extragenital sites. We present here a case of extragenital LSA with bullae on the upper back of a
33-year-old female. Histologic examination revealed hyperkeratosis, atrophy, vacuolar alteration of the basal layer
and homogenization of the collagen in the upper dermis. In addition, increased collagen bundles and lymphocytic
infiltration around the vessels in the lower dermis were also noted.
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KEYWORD
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Bullous, Lichen sclerosus et atrophicus
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