Most common site of volvulus is: March 2010 September 2010: (A) Ileum, (B) Appendix, (C) Sigmoid colon, (D) Caecum
Answer is C. Ans. C: Sigmoid colon Volvulus refers to torsion of a segment of the alimentary tract, which often leads to bowel obstruction. The most common sites of volvulus am the sigmoid colon and cecum. In sigmoid volvulus, rotation nearly occurs in the anticlockwise direction. Volvulus of other poions of the alimentary tract, such as the stomach, gallbladder, small bowel, splenic flexure, and transverse colon, are rare Predisposing factors includes a high residue diet and constipation.