Snapshot A 56-year-old woman presents to her primary care physician with pain in her hands. The pain began approximately 1 year prior to presentation and has progressively worsened. She describes the pain being worse in the evening and improves in the morning. She has also noticed swelling in her knuckles. On physical exam, there is bone deformity noted on the distal and proximal interphalangeal joints, as well as tenderness upon palpation of the affected joints. Introduction Clinical definition login to view 1 more bullet Epidemiology login to view 13 more bullets Pathogenesis login to view 14 more bullets Prognosis login to view 1 more bullet Biology and Anatomy Articular cartilage greatly decreases friction with movement and resists tension and compressive forces login to view 2 more bullets Presentation Symptoms login to view 3 more bullets Physical exam login to view 5 more bullets Imaging Radiography login to view 7 more bullets Studies Labs login to view 1 more bullet Diagnostic criteria login to view 1 more bullet Differential Rheumatoid arthritis Arthralgia Bursitis login to view 2 more bullets Tendonitis login to view 3 more bullets Treatment Conservative login to view 3 more bullets Medical login to view 3 more bullets Operative login to view 3 more bullets Complications Pain Bone deformity Functional impairment