An irregularly shaped ossific mass extends off of the left of C5/C6 both anteriorly and posterior to the vertebral bodies on this side, and appears to involve and enlarge the left intervertebral foramen. The left side of the C5 and C6 vertebral bodies are well defined but remodeled, accommodating the adjacent mass. The margins of the mass are well circumscribed, and the mass does not distort the contour of the tracheal air shadow.