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What Are Bouchard's Nodes?

By August 20, 2009

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Bouchard's nodes are a classic sign of hand osteoarthritis (the third most commonly affected joint following osteoarthritis of the knee and hip). Bouchard's nodes are bony enlargements of the middle joints of the fingers -- also known as the PIP joint or proximal interphalangeal joint.

Bouchard's nodes, like Heberden's nodes, may or may not be painful, but they are typically associated with limited motion of the affected joint. The nodes are strongly familial (i.e., inherited, genetic) and most researchers believe they are caused by osteophytes -- although some disagree. Bouchard's nodes are considered less common than Heberden's nodes. Have you seen the bony enlargements on your fingers but not known what they are called? Now you know -- and I can also tell you they were named after a famous French pathologist, Charles-Joseph Bouchard. Learn more in What Are Bouchard's Nodes?

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