Bouchard's node

Bouchard's node

[bo̅o̅shärz′]
Etymology: Charles J. Bouchard, French physician, 1837-1915
an abnormal cartilaginous or bony enlargement of a proximal interphalangeal joint of a finger, usually occurring in diseases of the joints, such as rheumatoid arthritis. Compare Heberden's node.
References in periodicals archive ?
The third guideline (recommendation strength: 80) concerns the presence of Heberden's and Bouchard's nodes, which "have limited value as a single diagnostic marker" but are nevertheless important, "especially when used in combination with other features of hand OA.
Tender, erythematous Heberden's and Bouchard's nodes were present over multiple distal interphalangeal (DIP) and proximal interphalangeal (PIP) joints.
Osteophytes, Heberden's nodes, Bouchard's nodes, and joint space narrowing can be seen in both EOA and osteoarthritis, but central erosions are characteristic of only EOA.