Incarceration of the small colon through a rent in the gastrosplenic ligament in a pony.

A 10-year-old castrated male pony was examined for intermittent signs of abdominal pain of 3 days' duration. An incarceration of the small colon through a rent in the gastrosplenic ligament was found. Resection and end-to-end anastomosis were performed on the affected portion of the small colon. The pony recovered and returned to its previous degree of activity. Incarceration of the small intestine and large colon through rents in the gastrosplenic ligament are documented, although involvement of the small intestine is more common. To the best of our knowledge, incarceration of the small colon has not been reported. Although a rare event, incarceration of the small colon in the gastrosplenic ligament should be considered in the differential diagnosis list for horses with intermittent signs of abdominal pain.