Case: Upper limb radiograph #10652318
Upper limb Advanced
Read this radiograph systematically before revealing the answer. What is the main abnormality?
Image: Hellerhoff via Wikimedia Commons · CC BY-SA 3.0 · source · resized and converted to WebP
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Answer: Carpal or carpometacarpal dislocation
What to look for in carpal or carpometacarpal dislocation
- Loss of the normal smooth carpal arcs (Gilula's lines) on the PA view.
- On the lateral view, the radius, lunate and capitate should line up; loss of this alignment indicates a carpal dislocation.
- Carpometacarpal dislocations show overlap or loss of the CMC joint spaces, best seen on oblique and lateral views.
Description by the image author (may be in another language): Perilunäre Luxation im Röntgenbild seitliche Projektion.
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.
