Eyelid cysts
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• Cyst of Zeis
It is small, non-translucent cyst on the anterior lid margin create from obstructed sebaceous glands related to the eyelash follicle
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• Cyst of Moll (apocrine hidrocystoma)
It may be a small retention cyst of the lid margin apocrine glands. It seen as a non-tender, round, translucent fluid-filled lesion on the anterior lid margin.
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• Sebaceous (pilar) cyst
It is caused by a blocked pilosebaceous follicle and contains sebaceous secretions; the gland orifice will often be visible.
It is only rarely found on the eyelid although it's going to occasionally occur at the inner
canthus.
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• Comedones Cyst
They are plugs of keratin and sebum within the dilated orifice of hair follicles that always occur in patients with acne . they'll be either open (blackheads) containing a darkened plug of oxidized material, or closed (whiteheads).
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• Milia Cyst
This are caused by occlusion of pilosebaceous units leading to retention of keratin. they're tiny, white, round, superficial papules that tend to occur in crops.
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• Epidermal inclusion cyst
it is is typically caused by implantation of epidermis into the dermis following trauma or surgery. it's a slow-growing, round, firm, superficial or subcutaneous lesion containing keratin.
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• Epidermoid cyst
It is rare and typically developmental, occurring along embryonic lines of closure.
it's similar in appearance to an epidermal inclusion cyst.
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• Subcutaneous Cyst
It is deeper and is typically attached to the periosteum at the lateral end of the brow.
It is caused by skin sequestered during embryonic development.
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• Eccrine hidrocystoma
It is a smaller amount common but similar in appearance to a cyst of Moll except that it's usually located along the medial or lateral aspects of the lid, and is close
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