A Rare Case of Eccrine Hidrocystoma of The Eyelid: Case Report and Literature Review

Eccrine hidrocystomas, is a rare cystic lesion of unknown origin linked to sweat retention, First described in 1893 and often present as small, translucent cysts, they derive from eccrine glands. While usually on the face, atypical locations are possible and can be single or multiple. Histology is crucial for diagnosis, revealing retention cysts involving intact eccrine glands. Differential diagnoses encompass various palpebral cystic tumors. Surgical treatment is recommended for significant lesions, while innovative approaches, including carbon dioxide laser and trichloroacetic acid injection, prove effective for smaller ones. Despite the potential for dyschromic sequelae, botulinum toxin type a injections offer lasting efficacy. No risk of malignant transformation is reported, but recurrence is possible.