Sign Up for a Free Account

This is an image preview.
Start a Free Account
to view the full image.

Sign Up for a Free Account For information on discounts, see Plans & Pricing

  • Nearly 3,000 illustrations, including video clips of neurologic disorders.

  • Every article is reviewed by our esteemed Editorial Board for accuracy and currency.

  • Full spectrum of neurology in 1,200 comprehensive articles.

  • Listen to MedLink on the go with Audio versions of each article.

Rheumatoid arthritis

(A) Anterior subluxation of C1 on C2. Lateral radiograph in flexion shows 1 cm of anterior subluxation (arrow). (B) C5-C6 disc narrowing. The MRI in flexion confirms the degree of deformity but also demonstrates compression of the cervicomedullary junction. (In: Greenberg J. Neuroimaging. Used with permission from McGraw-Hill Education)