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Sep 04, 2023
Epidermoid cysts are tiny, noncancerous tumors in the epidermis. Although they can appear anywhere on the skin, they are most usually found on the face, neck, and trunk.
Because of their gradual growth and frequent absence of pain, epidermoid cysts seldom cause problems or need treatment. You might choose to have a cyst removed if its look worries you, or if it is painful, ruptured, or contagious.
Although they are separate, sebaceous cysts and epidermoid cysts are frequently confused. True sebaceous cysts are less common. Sebaceous glands create them by releasing an oleic material that lubricates the skin and hair.
The epidermis, the top layer of your skin, is a thin, protective layer of cells that is regularly shed by your body. Most epidermoid cysts form when these cells multiply instead of flaking off when they penetrate deeper into your skin. Cysts can occasionally form as a result of skin irritation or injury to a hair follicle's outermost layer of skin.
Epidermal cells produce the cyst's walls and then secrete the protein keratin into the cavity. Keratin is the thick, yellow fluid that occasionally leaks from the cyst. This abnormal cell growth may be brought on by a damaged hair follicle or oil gland in the skin.
Although they are separate, sebaceous cysts and epidermoid cysts are frequently confused. Less frequently occur true sebaceous cysts. They are produced by sebaceous glands, which release an oily substance to lubricate the skin and hair.
Epidermoid cyst warning signs and symptoms include:
Epidermoid cysts can occur in almost anyone, although the following variables increase your risk:
A doctor's cyst inspection will typically identify the issue. Your doctor may also scrape out a sample of skin to inspect it under a microscope or take a biopsy of it to send to the lab for a thorough examination.
Sebaceous cysts are different from epidermoid cysts, despite their similarity. True epidermoid cysts develop when the epidermis or hair follicles are injured.
If a cyst doesn't hurt or interfere with your appearance, you can usually leave it alone. Talk to your doctor about these alternatives if you decide to get treatment:
The following adverse outcomes of epidermoid cysts are Possible:
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