Unilateral atlantal lateral mass hypertrophy associated with atlanto-occipital fusion

Unilateral hypertrophy of the lateral mass of the atlas is an extremely rare condition. The authors present a rare type of unilateral atlantal mass hypertrophy with atlanto-occipital fusion which is associated with an invaginated lateral mass of the atlas and the odontoid process into the foramen magnum. A 45-year-old woman presented with a 2-year history… CONTINUE READING