- The trichoepithelioma is a benign adnexal tumor of the follicular germinative cells.
- It may occur as a solitary lesion as discussed here, or as multiple lesions.
- A desmoplastic variant occurs.
- Multiple trichoepitheliomas may occur in
association with cylindromas as part to the Brooke-Spiegler Syndrome.
A white to yellow to flesh-colored solitary papule on the central face of a young adult is characteristic. The lesion is commonly misdiagnosed as a melanocytic nevus or a basal cell carcinoma. Rarely, larger lesions and extra-facial sites may occur.
This benign lesion need not be treated. Many patients, however, want removal for cosmetic reasons. Surgical excision is appropriate. Incomplete surgical excision may result in recurrence.
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