Ann Clin Case Rep | Volume 7, Issue 1 | Case Report | Open Access

Eruptive Vellus Hair Cysts: An Unusual Case Report

Bi-Wen Yuan1, Xiaoyan Liu1,2, Xuru Li1, Ying Guo3 and Shi-Jun Shan1*

1Department of Dermatology, Xiang'an Hospital of Xiamen University, School of Medicine, Xiamen University, China
2Department of Dermatology, Affiliated Hospital of Chengde Medical College, China
3Ackerman Academy of Dermatopathology, New York, USA

*Correspondance to: Shi-Jun Shan 

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Eruptive Vellus Hair Cysts (EVHC) are a sporadic developmental abnormality of vellus hair follicles, which was firstly described in 1977. It is usually asymptomatic and benign in nature occurred at any age. EVHC often presents clinically as round, dome-shaped, skin-colored papules ranging from tens to hundreds. Histopathologic features reveal a mid-dermal cyst lined by stratified squamous epithelium, filled with laminated keratin, variable numbers of transversally and obliquely cut vellus hair shafts. EVHC is not very common clinically; therefore, we described and added to the medical literature a unique case of facial EVHC mimicking nevus of Ota.


Yuan B-W, Liu X, Li X, Guo Y, Shan S-J. Eruptive Vellus Hair Cysts: An Unusual Case Report. Ann Clin Case Rep. 2022; 7: 2318..

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