Eccrine spiradenoma of eyelid - a rare tumor at an unusual location with literature review.

Eccrine spiradenoma is a rare sweat gland tumor and usually presents as a solitary, painful nodule. A solitary spiradenoma involving the eyelid is quite rare. A 39-year-old Indian female presented with a gradually increasing, painless, nodular upper eyelid mass for the past 4 years. On examination, a non-tender approximately 4 × 3 mm cystic mass was noted, which was not adherent to underlying structures. The mass was excised in toto, and the histopathological examination was suggestive of eccrine spiradenoma with a low Ki-67 index. The patient was doing well without any signs of recurrence at 2 months of follow-up.