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KMID : 0032220070190040153
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Annals of Dermatology
2007 Volume.19 No. 4 p.153 ~ p.156
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A Case of a Follicular Hybrid Cyst
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Lee Kyu-Yeop
Chung Kee-Yang
Roh Mi-Ryung
Kwon Yeon-Sook
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Abstract
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Various cutaneous cysts such as epidermal cysts, trichilemmal cysts, vellus hair cysts, steatocystoma, or pilomatricoma can arise from a different part of the pilosebaceous unit, namely the infundibulum, isthmus, sebaceous ducts, and bulbar or inferior portion. Rarely, a hybrid cyst that includes two or more components of a cystic lesion arising from the pilosebaceous unit can develop. The pathogenesis of this unusual disease is not yet known. We report a case of a follicular hybrid cyst which showed combined histologic features of both an epidermal cyst and pilomatricoma, and discuss the possible pathomechanism of the development of this hybrid cyst with a review of the literature.
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KEYWORD
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Epidermal cyst, Follicular hybrid cyst, Pilomatricoma
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