Where are Bouchard nodules commonly located in rheumatoid arthritis patients?

Bouchard nodules are typically found in the proximal interphalangeal (PIP) joints. They are bony enlargements that occur due to osteoarthritis, which is often confused with rheumatoid arthritis, but can also appear in the context of inflammatory joint diseases like rheumatoid arthritis due to the involvement of the PIP joints in these conditions.

In rheumatoid arthritis, the inflammation often leads to the erosion of cartilage and changes in the bone structure, which can manifest as nodules or bumps around the affected joints. The PIP joints are particularly affected in this disease process, making Bouchard nodules commonly located there. While DIP joints can also show changes in various arthritic conditions, Bouchard nodules specifically referencing their association with PIP joints reinforces their clinical relevance in rheumatoid arthritis.