Definition: A tumor originating from any of the three germinal layers. These tumors have a disorganized  structure and can be very vascular.  Teratomas of this region include:

• epignathus (nasopharyngeal teratoma),
• pharyngeal  and
• submandibular teratoma.

A teratoma should be distinguished from hemangioma of the face, since the face is a frequent site for Hemangiomata.