Fistula Dermoid

The skin and other human organs have cavities that communicate with the external environment. They are called conduits or fistulas. One type is skin fistulas that are open to the outside, usually appearing on the face and head. Their formation is based on a violation of the development of embryonic material in the coelomic sac, the cleft of which remains open. The skin funnel of this cyst is split and has different widths and shapes. The epidermis grows into the cleft in all directions, creating the appearance of a fistula. The glands located in such areas of the skin are often