Jan 19, 2025 · Small bowel internal mesenteric hernias manifest as proximal small bowel dilatation and an abrupt change in caliber at the level of the mesenteric defect. Mesenterial stranding sign is often associated.

Congenital mesenteric defects causing internal hernia have been mostly reported in infants and children, and can become a cause of unexpected death. In adult patients, the causes of mesenteric defect are mostly traumatic or postoperative state.

An internal hernia (IH) is defined as the protrusion of abdominal viscera, most commonly small bowel loops, through a peritoneal or mesenteric aperture into a compartment in the abdominal and pelvic cavity (1-3).

Internal trans-mesenteric hernia constitutes a rare type of internal abdominal hernia, corresponding from 0.2 to 0.9% of bowel obstructions. This type carries a high risk of strangulation and even small hernias can be fatal.

Sep 1, 2018 · Mesenteric hernia is a frequent cause of intestinal obstruction in childhood but is exceptional in the adult. We describe a case in a young adult without any remarkable history who presented with an acute abdomen and intestinal obstruction.

Nov 23, 2012 · Fig. 7 —Diagrammatic illustration of pericecal hernia shows loop of ileum prolapsing (arrow) through cecal mesenteric defect, behind and lateral to cecum, into right paracolic gutter. Foramen of Winslow hernias often present a similar radiographic appearance to that of left paraduodenal hernias.

Jan 2, 2025 · The appearance depends on the particular internal hernia. Common features include: encapsulation of distended bowel loops within an abnormal location. arrangement or crowding of small bowel loops within a hernial sac. evidence of obstruction with segmental dilatation and stasis. mesenteric vessel abnormalities

Sep 3, 2021 · Computerized tomography (CT) with and without intravenous contrast is the imaging test of choice, as it can determine the location and type of hernia based on its relationship to mesenteric vessels and provide evidence of bowel ischemia.

Apr 19, 2021 · Internal hernias occur when bowel herniates through a congenital or iatrogenic mesenteric defect (Figure 1).

Acute intestinal obstruction secondary to an idiopathic mesenteric hernia has been reviewed by collecting 139 reports from the literature and studying them from the standpoint of incidence, etiology, pathogenesis, clinical manifestations, diagnosis, treatment and mortality.