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KMID : 0363220080460070955
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Korean Journal of Dermatology
2008 Volume.46 No. 7 p.955 ~ p.957
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A Case of Pilar Sheath Acanthoma which Originated from Outer Root Sheath
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Jung Suck-Joon
Park Eun-Ju
Kim Chul-Woo
Jo Hee-Jin
Kim Kwang-Ho
Kim Kwang-Joong
Seo Young-Ju
Seung Na-Reu
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Abstract
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Pilar sheath acanthoma is a rare, benign follicular hamartoma commonly affecting middle-aged and elderly individuals. It is characterized by a small, solitary, skin-colored papule situated on the head and neck, particularly around the upper lip. The lesion shares some features with trichofolliculoma and dilated pore of Winer, so it should be differentiated from these. Cytokeratin (CK) is a useful marker for studying the origin of epithelial tumors. We report a case of pilar sheath acanthoma which originated from outer root sheath using CK.
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