A 41-year-old woman presented with a large medial canthal lesion that extended over the midline. Excisional biopsy revealed a multinodular basaloid tumor, located within the dermis and subcutaneous fat that extended into skeletal muscle at the deep and peripheral margin. Histology was consistent with trichoblastoma. A review of the literature reveals a lack of specific and sensitive immunohistochemistry markers to establish the diagnosis of trichoblastoma. Following reconstruction, the patient has shown no signs of recurrence of the lesion at 24 months.
Keywords: Eyelid; Medial canthus; Periocular trichoblastoma; Trichoblastoma.
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