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KMID : 0363220130510110909
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Korean Journal of Dermatology
2013 Volume.51 No. 11 p.909 ~ p.911
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A Case of Melanocytic Nevus Combined with an Vellus Hair Cyst
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Kang Jin-Hee
Kim Mi-Ri
Cho Baik-Kee
Park Hyun-Jeong
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Abstract
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A nevus with cyst is defined as a single lesion of a melanocytic nevus, and this is commonly associated with an
epidermal cyst. There have been rare reported cases of adnexal origin. The combination of nevus and cyst could
possibly be misdiagnosed clinically as a malignant melanoma at initial examination. A 51-year-old woman presented
with a painful, solitary, dome-shaped, erythemaous nodule on the forehead which had been present for several years.
The histopathologic specimen of the nodule showed a solitary cyst with a melaocytic nevus. There were nevus cells
without junctional activities in the upper dermis and melanin pigments in the upper dermal nevus nest. It contained
lamellated keratin materials and vellus hair shafts. We report here a rare case of melanocytic nevus combined with
an vellus hair cyst in a 51-year-old woman.
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KEYWORD
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Melanocytic nevus, Vellus hair cyst
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