A 17-year-old Quarter Horse broodmare was taken to surgery for signs of colic unresponsive to medical management. The small colon was strangulated by a pendulous ovarian pedicle. The strangulation was freed, and the affected ovary was removed. The mare developed signs of a small colon obstruction 4 days after surgery. The mare was euthanized 6 days after surgery for signs of a GI rupture. A post-mortem examination revealed necrosis of the affected portion of small colon.