Thyroglossal duct fistula


Thyroglossal duct fistulae have a typical course, extending up to the foramen cecum of the tongue. It can be associated with a thyroglossal cyst.

MRI can be helpful in the presence of active discharge from the external opening. CT fistulogram will help define the entire length of the tract. In some cases, both CT and MRI are complementary to each other.