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KMID : 0363220090470010080
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Korean Journal of Dermatology
2009 Volume.47 No. 1 p.80 ~ p.83
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A Case of Melanotrichoblastoma
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Shim Hyun-Soo
Seo Jong-Won
Seo Jong-Keun
Lee Sook-Kyung
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Abstract
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Melanotrichoblastoma is a variant of pigmented trichoblastoma that shows highly pigmented epithelial lobules and
differentiation toward the hair bulb. Histologically, the tumor presents features of trichoblastoma, and the histological
findings are remarkable by virtue of the heavy melanin deposits found within and around the tumor cell nests. For
the immunohistochemistry, abundant dendritic melanocytes (with the expressions of S100 protein, tyrosinase and
most importantly, gp100/HMB45) are found within the tumor masses. We report here on a rare case of melanotrichoblastoma
in a 57 year-old female patient.
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KEYWORD
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Melanotrichoblastoma, Trichoblastoma
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