Epidermoid cysts are slow growing and often painless, so they rarely cause problems or need treatment. You might choose to have a cyst removed by a doctor if its appearance bothers you or if it’s painful, ruptured or infected. Many people refer to epidermoid cysts as sebaceous cysts, but they’re different.
Though they’re not cancerous, sebaceous cysts can be irritating. A sebaceous cyst is a small lump or bump under the skin. … Usually a sebaceous cyst grows very slowly and doesn’t cause pain. However, they can become inflamed or infected, with the overlying skin becoming red, tender, and sore.
The chances of intracranial epidermoids is about 1% of all brain tumors. This benign tumor of the brain is made up of normal skin cells (stratified epithelial lining) on the outside, and fatty acids and keratin are on the inside of the tumor or sac. … Epidermoid tumors strongly adhere to the brain stem or cranial nerves.
Most epidermoid cysts either stop growing or go away on their own without treatment. Physicians will usually make note of a cyst and monitor it during each checkup to make sure that it has not changed. Since epidermoid cysts are very rarely cancerous, they do not pose a risk. Most are never treated.