Giant Eyelid Eccrine Hidrocystoma: A Case Report

Aims: To report a case of a rare giant eyelid eccrine hidrocystoma confirmed on histopathological examination and successful surgical excision with no recurrence. Presentation of Case: A young male presented with a mass over his eyelid which was gradually increasing in size, leading to drooping of the upper eyelid with no other associated symptoms. The mass 20x15x10 mm was present over the upper lid, non-mobile, non-tender, and firm. On the CT scan, a well-defined round to oval hypodense cystic mass was seen to be originating from the left upper eyelid. The cyst was excised and sent for histopathological analysis. The histological appearance of cystic spaces lined by cuboidal epithelium and containing mucinous fluid was suggestive of eccrine hidrocystoma. There was no recurrence till 2 months of follow-up. Conclusion: Eccrine hidrocystomas are 1-6 mm in size, generally 4 mm, and cysts larger than 10 mm are rare. Larger cysts have been described as “giant eccrine hidrocystoma.” Giant eyelid eccrine hidrocystoma is an unusual condition of the eyelid that must be considered in the differential diagnosis of eyelid tumours. They can be managed by complete surgical excision although recurrences are found to be common.