Ann Dermatol.
2007 Dec;19(4):153-156. 10.5021/ad.2007.19.4.153.
A Case of a Follicular Hybrid Cyst
- Affiliations
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- 1Department of Dermatology and Cutaneous Biology Research Institute, Yonsei University College of Medicine, Seoul, Korea. derma@yumc.yonsei.ac.kr
- KMID: 2156339
- DOI: http://doi.org/10.5021/ad.2007.19.4.153
Abstract
- 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.
