External iliac lymph node metastasis of colon cancer is rare. A case of appendiceal cancer in which an isolated right external iliac lymph node metastasis was found after laparoscopic resection and was safely resected laparoscopically is presented. An 83-year-old man with a history of laparoscopic right inguinal hernia repair (TAPP) underwent laparoscopic ileocecal resection for ascending colon infiltration of appendiceal cancer, and the result was pT4bN1M0 Stage IIIc R0 CurA. Tumor markers were increased 3 months after the operation, and computed tomography showed a 17-mm mass around the right external iliac artery and vein. No other metastases were found, the patient was diagnosed with solitary lymph node metastasis, and resection was selected. The surgery was performed laparoscopically, and the tumor was removed by excising a part with the hernia mesh. From the clinical pathological findings, it was considered to be lymph node metastasis of appendix cancer. He is alive without recurrence 5 months after the operation. There are few reports on right external iliac lymph node metastasis from right colorectal cancer, suggesting the usefulness of surgical resection. This case is reported along with a review of the literature.