RESUMO
INTRODUCTION: Internal hernia is a visceral protrusion through a defect or aperture, either mesenteric or peritoneal and is an uncommon cause of intestinal obstruction. Within this group, the congenital mesenteric (transmesenteric) hernia is extremely rare, being more common in the pediatric population. OBJECTIVE: To present the case of a 38-year-old woman with intestinal obstruction and acute abdomen who underwent surgery. A giant mesenteric (transmesenteric) hernia was found. The hernia was reduced and the defect closed. Discharge was made without complications. CONCLUSIONS: Congenital mesenteric hernias are an infrequent pathology that may cause intestinal obstruction, predominantly in the pediatric population. Occurrence in adults is extremely rare.
