Cervical segmental abnormality
Introduction
Introduction Cervical vertebrae segmentation is also called cervical fusion malformation. It is a fusion of two or more cervical vertebrae. It is characterized by a decrease in the number of cervical vertebrae, a shortened neck, limited head and neck movement, and often accompanied by deformities in other parts. A small number of patients may With a nervous system disorder. It is caused by congenital factors, and it is currently thought to be caused by the abnormal movement of the osteopontin cells in the 3-7 spines of the embryo. The patient's neck is shorter than normal, the occipital hairline is reduced, and head movement is limited. A small number of patients may be associated with syringomyelia, congenital deafness, oculomotor, abductor or facial nerve paralysis, familial ataxia, and mental retardation.
Cause
Cause
It is currently believed that abnormal growth of the osteopontin cells in the 3-7 spines of the embryo causes the disease.
Examine
an examination
Related inspection
Posterior intervertebral foramen extrusion test after neck MRI
The patient's neck is shorter than normal, the occipital hairline is reduced, and head movement is limited. A small number of patients may be associated with syringomyelia, congenital deafness, oculomotor, abductor or facial nerve paralysis, familial ataxia, and mental retardation. Some patients may have a "mirror action", that is, the action of one side of the upper limb is mimicked by the other side, but the lower limbs are not affected, and the symptoms are gradually less obvious with age.
Diagnosis
Differential diagnosis
1. Cervical lymphadenitis: When the baby suffers from such a disease, the head and neck can also be tilted to the affected side, but at this time the mass is accompanied by obvious tenderness and is not in the same part as the sternocleidomastoid muscle, which is easy to distinguish.
2, cervical vertebrae deformity: multiple congenital vertebral fusion deformity can be identified according to X-ray plain film and sternocleidomastoid muscle examination.
3, other including a variety of bone and joint injuries, such as cervical spine tuberculosis spontaneous atlantoaxial dislocation, etc., should pay attention to identify rare polio sequelae may also include torticollis deformity, in addition, such as hysteria torticollis, habitual strabismus and Muscle spasm and torticollis after neck sprain are easily confused and should be excluded.
