What is your diagnosis? Palmar carpal bone fracture.

[1]  A. Nixon,et al.  Arthroscopic approaches to the palmar aspect of the equine carpus. , 2006, Veterinary surgery : VS.

[2]  A. Nixon,et al.  Fractures of the palmar aspect of the carpal bones in horses: 10 cases (1984-2000). , 2001, Journal of the American Veterinary Medical Association.