X Ray Cervical Spine Lateral View

The lateral view of the cervical spine is a side X-ray that visualizes C1–C7 and adjacent soft tissues to assess alignment, vertebral bodies, disc spaces, facet joints, and prevertebral soft tissue. Obtained with the neck in a neutral lateral position including the skull base to the upper thoracic vertebrae, it helps detect fractures, subluxation, degenerative change, and soft-tissue swelling.

The lateral cervical X‑ray is taken with the patient standing or sitting erect, head in neutral and shoulders relaxed, arms by the sides. The film should capture C1–T1 with true lateral alignment (mandibular rami superimposed, no rotation). The central ray is directed perpendicular to the C4 level. In suspected trauma, maintain cervical immobilization and use a horizontal cross‑table lateral view.

The lateral cervical spine radiograph is the single most important view for initial assessment. It demonstrates vertebral body alignment, intervertebral disc height, prevertebral soft tissues, and common fractures or dislocations. An open‑mouth odontoid view is added to visualize C1–C2, while oblique/AP views assess foramina and alignment when nerve‑root injury or additional detail is suspected.

A lateral neck X‑ray evaluates airway and prevertebral soft tissues, detecting airway narrowing (e.g., croup), epiglottic swelling (thumb sign), retropharyngeal or prevertebral abscesses, and radiopaque foreign bodies. It also shows cervical spine alignment or fractures, soft‑tissue masses, calcifications, and signs of infection or inflammation. It’s useful in acute airway compromise, trauma, or suspected deep neck space infections.

A lateral view is an X‑ray taken from the side to show structures in profile. It helps localize lesions in three dimensions, reveal fractures, dislocations, spinal alignment, joint spaces and chest findings hidden on frontal films, assess soft tissues or foreign bodies, and confirm device or line placement. It complements frontal views by reducing overlap and clarifying depth.

C3–C7 are the lower five cervical vertebrae in the neck. They form the cervical spine segment that supports the head, protects the spinal cord, and allow neck movement. Nerve roots exiting at C3–C7 supply motor and sensory function to the shoulders, arms and hands. These levels are common sites for disc degeneration, herniation and nerve compression.