Heberden's nodes (thumb, middle, ring, and little finger DIP joints), Bouchard's nodes (index finger PIP joint), and lateral radial/ulnar deviation (index PIP joint, ring DIP joint) in the left hand of a person with nodal OA.
Reproduced with permission from: OARSI Online Primer. Edited by Henrotin Y, Hunter D, Kawaguchi H. 2012. Osteoarthritis Research Society International. (http://primer.oarsi.org).
