Eyelid Eccrine Cyst: An Exceptional Lesion Among Dominant Apocrine Cysts.

A 71-year-old woman developed a small bluish lesion beneath the cilia of the left lower eyelid. Excision and microscopic examination disclosed a cyst with an intimately associated eccrine sweat gland. Immunohistochemistry demonstrated that the cyst's epithelium was strongly CK5/6, CK14, CK7 weakly positive, and gross cystic disease fluid protein-15 and smooth muscle actin negative.