Abdomen, Pelvis & Perineum
The caecum is found to be placed below the epigastrium (just below stomach) and in the midline. Which of the following abnormality must have taken place while rotation of the gut (AIIMS – Nov - 2010)
Pg. 1209; Gray's Anatomy (40th Ed.),
Rotation anomalies (malroatation)
• Non-rotation: Due to non-rotation small intestine lies on the right side of the abdomen and the entire large intestine is on the left.
• Mixed rotation: The intestine doesn’t rotate as it re-enters the abdomen after physiological hernia.
Caecum lies just inferior to the pylorus of the stomach. It may result in volvulus (twisting) of intestine, which leads to obstruction further.
• Reverse rotation: The intestine rotates in clockwise, rather than anti-clockwise direction. Duodenum and superior mesenteric artery lie anterior to the transverse colon, which might compress the transverse colon leading to obstruction.