Usually presents as a solitary and translucent cyctic nodule containing serous or milky secretions
Cystic lesion of the either apocrine or eccrine sweat glands
Apocrine hidrocystoma originate from the blocked excresion of the glands of moll, may occasionally encountered as multiple lesions and usually found on the lid margin.
Eccrine hidrocystoma are regarded as less common ductal retension cysts that are not confined to the lid margin.