Transmural penetration of sigmoid colon and rectum by retained surgical sponge after hysterectomy

Figure 3 Operative and specimen findings. A mass like lesion found in the left lateral wall of the rectosigmoid colon (A); Surgical sponge penetrated to the submucosal layer of the sigmoid colon and rectum and migrated to form a fistula (B and C); Retained surgical sponge (D).