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KMID : 0363219740120030163
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Korean Journal of Dermatology
1974 Volume.12 No. 3 p.163 ~ p.165
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A Case of Becker´s Nevus
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송종남/Song, Jong Nam
김점용/김우제/이정복/Kim, Jerm Young/Kim, Woo Je/Lee, Jung Bock
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Abstract
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The Becker´s nevus (pigmentary hairy edidermal nevus) is a variety of epidermal nevus in which epidermal thickening may be minimal, and hairiness and pigmentation obvious. Characteristically it is a unilateral lesion of the shoulder in males but it may affect other sites, be multiple and bilateral, and be found in women and negroes. Histologically nevus cells are not seen in the dermis.
A man aged 25 had the nevus covering extensive area on his right shoulder since 2 years ago. The pigmentation was dark brownish and hairy. The pigmented area was noninfiltrated and in place showed perifollicular darkening. Coarse hairs were noticed since a year ago.
The histopathological picture showed hyperkeratosis, acanthosis, papillomatosis and increased melanin pigments in the basal cell layer. Nevus cells were not seen in the dermis.
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