True about colonic volvulus: (A) Most common in caecum, (B) Common in psychiatric pt., (C) Bird's beak sign, (D) May present as intestinal obstruction
Answer is B. A volvulus is a twisting or axial rotation of a poion of bowel about its mesentery. When complete it forms a closed loop of obstruction with resultant ischaemia secondary to vascular occlusion. Volvuli may be primary or secondary.it is Common in psychiatric patients.The commonest spontaneous type in adults is sigmoid Ref: Bailey & Love&;s Sho Practice of Surgery,E25,Page-1191,1192