Extensor process fragment

  • X-ray
  • Horse
  • Bones and joints
  • Coffin joint
  • Finding

Findings are Pro only. Every normal study is free; Pro opens each finding beside its normal.

See Pro

What to look for

  • A 5 mm bone fragment at the extensor process of the distal phalanx (arrow)
  • Inside the distal interphalangeal (coffin) joint
  • Here removed by arthroscopy

Against the normal

Read every bone's outline and density, then every joint: the space, the margins and the bone under the cartilage. Compare with the other limb, and always take at least two views at right angles.

Source: Phillips N. A. I. et al., Animals 2026;16(8):1168. CC BY 4.0. For learning: not a diagnostic service.

Read the film, then see the anatomy in 3D.

Vetomica puts every bones and joints structure on this x-ray in a complete 3D horse you can peel, cut and X-ray from any angle, with every imaging finding beside its normal and practice at reading films.

The 3D animals are free for 7 days, no card. Imaging findings are Pro; every normal study stays free.

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