Abstract: | A 14-year-old Welsh-cross gelding was referred to Texas Veterinary Medical Center's Teaching Hospital because of mild to moderate abdominal pain of 48 hours duration. The referring veterinarian rectally palpated a grapefruit-sized firm mass in the anterior ventral abdomen. The pony had been treated with flunixin megluminea (1.0 mg/kg, IV) and mineral oil (2 liters) via nasogastric tube. |