Case: Bone & joint disease radiograph #98862154
Bone & joint disease Intermediate
Read this radiograph systematically before revealing the answer. What is the main abnormality?

Image: Hellerhoff via Wikimedia Commons · CC BY-SA 4.0 · source · resized and converted to WebP
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Answer: Rheumatoid arthritis
What to look for in rheumatoid arthritis
- Periarticular osteopenia.
- MCP/PIP marginal erosions.
- Ulnar deviation.
Description by the image author (may be in another language): Rheumatoide Arthritis mit ausgedehnten Osteolysen am Daumen
Educational case. The diagnosis comes from the image's documented source; the "what to look for" list describes the condition in general and is not a report of this individual image.





