Fig. 4

Enhanced computed tomography before the second surgery. Transverse section (a) and coronary section (b) images show the enlarged cecum (C) and ascending colon (A). The obstructive point was on the remaining transverse colon with a whirlpool sign (red circle). The anastomotic site of the first surgery (as) was placed in the left upper abdominal cavity. The appendix (white arrow) was in the upper abdominal cavity. The volvulus and the distribution of the gastrointestinal tract are indicated in (c)