Imaging Case of the Week 540 Answer

The wrist x-ray shows

At first glance, the frontal wrist x-ray reveals a radial styloid fracture. On close inspection, the scapholunate distance appears wider than normal (2mm). Actual scapholunate distance measurement was 3. 5mm indicating an associated scapholunate dissociation.

Remember to scrutinize Gilua arc while interpreting write x-rays.

Further reading Gilula three carpal arcs | Radiology Reference Article |