Pediatric Radiology > Abdominal > Lower GI > Malrotation - Introduction
Malrotation - Introduction
Malrotation
is the failure of the normal embryonic rotation of the bowel, which results
in suspension of the small bowel on a narrrow vascular pedicle. The duodenal-jejunal
junction does not reach its expected location to the left of the spine
at the level of the duodenal bulb. Malposition of the cecum may result
in its location in the left side of the abdomen. Complications include
obstruction and midgut volvulus. Most present at early age with bilious
vomiting, but symptoms can occur at any age. Midgut volvulus is a surgical
emergency, because it can lead to bowel necrosis. Ladd Bands are dense
peritoneal bands, which cross the duodenum from the malpostioned cecum
to the hilum of the liver. They may cause partial obstruction. |