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KMID : 0363220170550050290
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Korean Journal of Dermatology
2017 Volume.55 No. 5 p.290 ~ p.292
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Eruptive Vellus Hair Cysts in a Patient with Mental Retardation
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Lee Sook-Young
Son Hyun-Ok
Chun Sin-Wook
Kim Jong-Baik
Cho Han-Kyoung
Ro Byung-In
Choi Han-Gyu
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Abstract
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Eruptive vellus hair cysts (EVHCs) are small, red- or brown-colored cystic papules that usually occur on the chest and proximal extremities of children and adults. Histologically, these small cysts are observed in the mid-dermis and contain multiple hair shafts and keratinous material. Pathogenesis of EVHC has not been completely understood. A 40-year-old man with mental retardation presented with multiple bluish papules on his back. A biopsy specimen showed features of eruptive vellus hair cysts. We report a case of EVHC that occurred at an unusual site in a patient with mental retardation.
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KEYWORD
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Eruptive vellus hair cysts, Mental retardation
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