A dermoid cyst is a fluid-filled sac near the surface of the skin that may have also hair, skin, or other tissues inside. These cysts form during a baby’s development before birth and usually need ...

A myxoid cyst is a small, benign lump that occurs on fingers or toes, near a nail. It’s also called a digital mucous cyst or mucous pseudocyst. The cause of myxoid cysts isn’t certain. They’re usually ...

There are several types of spinal cyst, all of which are rare. Tarlov or perineural cysts affect nerve roots, most commonly in the sacral region of the spine. The majority are asymptomatic, but they ...