Hidrocystoma with some bonus Blackheads

Hidrocystomas, also known as cystadenomas, sudoriferous cysts, and Moll's gland cysts, are benign cyst tumors that are derived from either the eccrine or apocrine sweat gland. They commonly affect the eyelid, and slowly grow usually on the face or scalp. They both affect males and females, are usually asymptomatic and are more common in adults. Apocrine hidrocystomas aren't affected by temperature, but the eccrine hidrocystomas grow smaller in cooler temperatures and larger in heat exposure. The exact cause is not known but it is said that the eccrine hidrocystoma is due to the obstruction of the sweat gland which causes the retention of secretions and appearance of a dilated cystic structure. The apocrine hidrocystoma is thought to be an adenoma of the coil structure of the apocrine sweat gland. These are found only on certain areas of the body. For example, eyelids, armpits, areolae, external ear and genital region. Compared to the eccrine sweat glands, the ductal openings of the apocrine sweat glands are more closely associated to the eyelashes. The Eccrine sweat glands are found distributed throughout the whole body.