An unusual presentation of thyroid papillary carcinoma: enlargement of a cervical intervertebral foramen.

Isolated enlargement of the cervical intervertebral foramen is frequently associated with dumbbell neurogenic tumors. We present an unusual case of isolated enlargement of a cervical intervertebral foramen in a 77-year-old male with an aggressive papillary thyroid carcinoma. To our knowledge, this represents the first case describing a thyroid process as a cause of foraminal enlargement.