Hematogenous umbilical metastasis from colon cancer treated by palliative single-incision laparoscopic surgery

Figure 4 Intraoperative findings and surgical procedures. A: The umbilicus and caulescent tumor were resected en bloc with establishment of a surgical margin and ligation of vessels; B: Single-site laparoscopic surgery involving right hemicolectomy with paracolic lymph node dissection was subsequently performed. C: Indocyanine green was injected into the paraumbilical portion beforehand, allowing for detection of the drainage lymph nodes in the abdomen (arrow). SMNJ: Sister Mary Joseph’s nodule.