Giant eyelid eccrine hidrocystoma-induced progressive ptosis in childhood.

An upper lid eccrine hidrocystoma presenting as early childhood progressive ptosis is very rare. We present a 9-year-old female child with droopy right upper lid since birth and progressive increase in symptoms. She had right upper lid ptosis (marginal reflex distance 1 of -1 mm) with fair levator function (8 mm) and abnormal cystic change on the conjunctival side. Computerized tomography imaging delineated the well-defined cystic lesion with homogeneous cavity with no contrast enhancement. Following the cyst excision, a giant eccrine hidrocystoma measuring 25 mm × 15 mm was removed, the largest reported in pediatric eyes. The case demonstrates the possibility of giant lid eccrine hidrocystomas presenting as progressive ptosis at a pediatric age and the need for early surgical intervention to prevent amblyopia.