title: [A Case of Ascending Colon Cancer with Extra Iliac Lymph Node Metastases].
abstract: We report a case of ascending colon cancer with right extra iliac lymph node metastases. A 60s-year-old woman underwent right hemicolectomy with lymph node dissection in July 2011. Pathological diagnosis was T4 (SE), N1 (2/42), M0, stage ⅢA. Adjuvant chemotherapy with tegafur/uracil was administered after the operation for 6 months. One year after the operation, the serum carcinoembryonic antigen (CEA) level was gradually increasing. Three years after the operation, positron emission tomography-computed tomography (PET-CT) delineated a 3 cm mass with an abnormal signal on the right lower abdominal side of the external iliac vessels. The diagnosis was an isolated remnant tumor in the right extra iliac vessels area from the primary ascending colon cancer. Other recurrent lesions were not found; therefore, resection of this mass was performed. Pathological findings confirmed lymph node metastases from the ascending colon cancer. This type of metastasis is extremely rare, and more case reports are needed to determine the mechanism behind these metastases.
authors.affiliation: Dept. of Surgery, Toyama Prefectural Central Hospital.
authors.forename: Itsuro
authors.initials: I
authors.lastname: Terada
authors.forename: Siro
authors.initials: S
authors.lastname: Terai
authors.forename: Toshifumi
authors.initials: T
authors.lastname: Watanabe
authors.forename: Yohei
authors.initials: Y
authors.lastname: Kawahara
authors.forename: Koji
authors.initials: K
authors.lastname: Amaya
authors.forename: Seiichi
authors.initials: S
authors.lastname: Yamamoto
authors.forename: Masahide
authors.initials: M
authors.lastname: Kaji
authors.forename: Kiichi
authors.initials: K
authors.lastname: Maeda
authors.forename: Koichi
authors.initials: K
authors.lastname: Shimizu
mesh_terms: D000971:Antineoplastic Combined Chemotherapy Protocols / Q000627:therapeutic use; D017024:Chemotherapy, Adjuvant; D044682:Colon, Ascending / Q000473:pathology* / Q000601:surgery; D003110:Colonic Neoplasms / Q000188:drug therapy / Q000473:pathology* / Q000556:secondary; D005260:Female; D006801:Humans; D008197:Lymph Node Excision; D008198:Lymph Nodes / Q000473:pathology*; D008207:Lymphatic Metastasis; D011379:Prognosis; D005641:Tegafur / Q000008:administration & dosage; D014498:Uracil / Q000008:administration & dosage
chemical_list: D005641:Tegafur; D014498:Uracil