A dermoid cyst is a pocket or hole under the skin. It contains tissue normally found in the outer layers of the skin. This might be hair follicles, oil, and sweat glands. Oil and sweat collect inside the cyst, causing it to get larger.
A dermoid cyst may appear at birth or soon after. But often it is not seen until years later. Dermoid cysts are usually found on the head, neck, or face. They can also occur on other parts of the body.
A dermoid cyst looks like a small lump under the skin. The skin over the lump can easily be moved. The lump may be skin-colored, or may have a slight blue color.
The symptoms of a dermoid cyst can be like other health conditions. Make sure your child sees his or her healthcare provider for a diagnosis.
Your child’s healthcare provider will usually diagnose a dermoid cyst based on what it looks like and where it is. He or she will look at the cyst and surrounding area. Your child may need imaging tests to find out if the cyst is connected to other tissue in the head and neck. Tests may include:
Depending on where the cyst is located, it can cause problems. For example, a dermoid cyst near the eye may affect your child’s eyesight. But this is uncommon. Cysts also can: