A plain CT scan of the neck is a diagnostic imaging procedure that uses X-rays and computer technology to create detailed cross-sectional images of the structures in the neck. It is a non-invasive and painless procedure that helps doctors evaluate the anatomy and detect abnormalities in the neck region. During a plain CT scan of the neck, you will lie on a table that slides into a large, doughnut-shaped machine called a CT scanner. The scanner rotates around your neck, taking multiple X-ray images from different angles. These images are then processed by a computer to create detailed cross-sectional images of the neck.