Korean J Dermatol.
2001 Jun;39(6):716-719.
A Case of Epidermal Cyst containing Hair Shafts and Trichilemmal Cyst occurring on the Knees
- Affiliations
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- 1Department of Dermatology, College of Medicine, Hallym University Anyang, Korea. dercc@www.hallym.or.kr
Abstract
- We report a case of 4-year-old girl with erythematous papule and nodule on the right knee and left knee, respectively. Histopathologically, the findings of walls of the each cystic lesions were those of the epidermal cyst containing hair shafts of lanugo size on the right knee and the trichilemmal cyst on the left knee. The observation of hair shafts in a cystic cavity represents an important clue for identifying some unusual varieties of cystic lesions. We report a interesting case of epidermal cyst containing hair shafts and trichilemmal cyst simultaneously and independently occurred on the right knee and left knee, respectively.
