DR P. MARAZZI / SCIENCE PHOTO LIBRARY DR P. MARAZZI / SCIENCE PHOTO LIBRARY
Wrist X-ray before trapeziumectomy. X-ray of the wrist of a 64-year-old woman with rheumatoid arthritis. She is about to undergo a trapeziumectomy, an operation to remove the trapezium bone from her wrist. Rheumatoid arthritis is caused by the immune system attacking the body's own tissues, causing progressive joint and cartilage destruction. Surgery is used to remove destroyed tissues.
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