Epidermoid Cyst

 

Epidermoid cyst is the most common type of skin infection. They occur anywhere on the human body but they mostly appear on the face or the upper trunk or the neck. An epidermoid cyst consists of a cyst wall made up of skin cells that is found in the epidermis. The cyst wall is round in shape and projects downwards into the second layer of the skin dermis. The cyst wall produces keratin – a type of protein found in hair, skin and nails. It may be white, firm or cheesy. An epidermoid cyst appears to be a round raised bump. When touched, the cyst wall can be felt and the cyst moves under the skin freely. Usually, there is a tiny opening on the skin’s surface which may look like a scab, however the opening is too small to be visible to the naked eye.

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