In a lateral extension cervical spine radiograph, which description matches the appearance of the spinous processes?

• A. Seven spinous processes in profile, depressed and closely spaced
• B. Spinous processes are blurred
• C. Spinous processes are not visible
• D. Only the upper spinous processes are visible

Answer: (A)

In a lateral extension view of the cervical spine you should see the spinous processes clearly in profile as a row along the back of the vertebrae. Proper extension brings all seven cervical spinous processes into view as discrete, slightly depressed projections that are closely spaced in sequence. This appearance indicates the posterior elements are aligned in a single plane and not overlapped or obscured, which is what you want for a good lateral cervical radiograph.

If the spinous processes appear blurred, that points to motion during the exposure. If they’re not visible at all, the image quality or exposure is inadequate. If only the upper spinous processes are visible, the lower cervical region hasn’t been captured adequately. The described appearance—seven spinous processes in profile, depressed and closely spaced—best matches a well-positioned, properly extended lateral cervical spine radiograph.