Pleomorphic Adenoma of the Eyebrow: An Unexpected Finding and Review of Unusual Periorbital Soft Tissue Lesions.

Soft tissue lesions of the eyebrow are common and are usually diagnosed as dermoid cysts, pilomatrixomas, inclusion cysts, or basal cell carcinomas. Pleomorphic adenomas are benign glandular lesions most commonly found in the parotid gland or salivary glands, and less commonly found in the lacrimal gland. Here the authors report the case of a 35-year-old male who presented with a prominent soft tissue lesion of his right upper brow. This had been present for several months and had not substantially changed in size. Operative excision was performed via a supratarsal crease incision. The mass was located in a deep, periosteal plane, similar to a dermoid cyst. Final pathology demonstrated a 1.1 × 1.0 × 0.9 cm pleomorphic adenoma without defining characteristics of either the lacrimal gland or the minor adnexal glands of the skin or subcutaneous tissue. The authors reviewed the current literature on unusual lesions of the periorbital and brow regions, and the authors present aggregate data regarding epidemiology, diagnosis, and management.