What type of nodes are characterized by joint enlargement and capsule thickening at the proximal interphalangeal joints?

What type of nodes are characterized by joint enlargement and capsule thickening at the proximal interphalangeal joints?

• A. Bouchard's nodes
• B. Heberden's nodes
• C. Swan neck deformity
• D. Boutonniere deformity

Answer: (B)

The correct answer relates to Bouchard's nodes, which are specifically associated with osteoarthritis and manifest as bony enlargements at the proximal interphalangeal joints. These nodes develop due to changes in the bone structure and joint capsule, leading to both enlargement of the joints and thickening of the joint capsule. Bouchard’s nodes occur in conjunction with Heberden's nodes, which are found at the distal interphalangeal joints, but the question clearly specifies the proximal interphalangeal joints, making Bouchard's nodes the primary focus here. Understanding the characteristics of these nodes is crucial for recognizing the patterns of osteoarthritis, as each type of node signifies where the degeneration and joint changes are taking place. Other options mentioned pertain to deformities or nodes located at different joint sites, making them less relevant in this context.

The correct answer relates to Bouchard's nodes, which are specifically associated with osteoarthritis and manifest as bony enlargements at the proximal interphalangeal joints. These nodes develop due to changes in the bone structure and joint capsule, leading to both enlargement of the joints and thickening of the joint capsule.

Bouchard’s nodes occur in conjunction with Heberden's nodes, which are found at the distal interphalangeal joints, but the question clearly specifies the proximal interphalangeal joints, making Bouchard's nodes the primary focus here.

Understanding the characteristics of these nodes is crucial for recognizing the patterns of osteoarthritis, as each type of node signifies where the degeneration and joint changes are taking place. Other options mentioned pertain to deformities or nodes located at different joint sites, making them less relevant in this context.