Impact of visceral obesity on postoperative complications and oncological outcomes in elderly patients with colorectal cancer

Figure 1 Imaging test of typical case. A: Shows the image detection of the operation area of the abdominal obesity group on the 30^th postoperative day (POD). The imaging performance of the abdominal operation area of the patient with abdominal obesity on POD 30 showed that the tissue structure in the operation area was clear and there was no abnormal density shadow or effusion. The wound healed well; B: Shows the imaging findings of local recurrence in the abdominal obesity group three months after surgery. Reexamination of the patient with abdominal obesity at 3 months after surgery showed an irregular soft tissue density shadow (arrow) at the edge of the original operation area, and the boundary was fuzzy, indicating local recurrence; C: Shows the image detection of the operation area of the non-abdominal obesity group on the 30^th POD. The imaging performance of the patient with non-abdominal obesity in the operation area on POD 30 showed that the anatomical level of the operation area was clear, and no obvious exudation, hematoma, or recurrence was found; D: Shows the imaging detection of local recurrence at 3 months after surgery in the non-abdominal obesity group. The imaging detection figure of the non-abdominal obesity patient three months after operation shows that nodular abnormal signal shadow with a diameter of about 1.2 cm (arrow) appears in the adjacent area of the operation area, and the enhanced scan is uneven and intensive, suggesting local recurrence.

Figure 2  Survival curve.

Figure 3 Forest plot results of logistic regression analysis. BMI: Body mass index; 95%CI: 95% confidence interval.