Internal hernia of the stomach through the lateral space of the colostomy: a case report.

An 81-year-old woman had undergone laparoscopic abdominoperineal resection for rectal cancer. A permanent colostomy was created through an intraperitoneal route. Three months after the surgery, the patient presented with lower abdominal pain and vomiting. Computed tomography showed gastric incarceration through the lateral space of the lifted sigmoid colostomy. Although the herniated stomach was reduced by nasogastric tube decompression, the patient experienced a recurrence of gastric hernia shortly thereafter. A laparoscopic operation was performed, and a new colostomy was constructed through an extraperitoneal route. The patient had no hernia recurrence during the 20 months of follow-up after the operation. Gastric internal hernia associated with colostomy can occur as a rare complication. Although reduction of the incarcerated stomach is possible by nasogastric tube decompression, surgical repair of the hernia may be the optimal management to prevent recurrence.