title: Locoregional and multiple distant metastases after chemoradiation therapy following endoscopic resection for rectal cancer with deep submucosal invasion.
abstract: A 61-year-old man underwent endoscopic mucosal resection for a 12-mm flat neoplasm in the lower rectum at another hospital. Histopathology of the resected specimen indicated well- to moderately differentiated adenocarcinoma with deep submucosal invasion and lymphatic and venous involvement. Although the tumor was completely removed by endoscopic resection, the possibility of lymph node metastasis could not be ignored. Therefore, additional surgery with lymph node dissection was recommended, but the patient refused and visited our hospital. He instead underwent chemoradiotherapy as an alternative therapy(i.v. drip infusion of 5-fluorouracil [250 mg/m(2) per day] for 5 days × 5 weeks + 1.8 Gy/day of irradiation for 5 days × 5 weeks). However, lung and locoregional metastases were detected approximately 2 years after completion of chemoradiotherapy. He is now undergoing systemic combination chemotherapy with capecitabine, oxaliplatin, and bevacizumab once a month.
authors.affiliation: Department of Gastrointestinal Oncology, Osaka Medical Center for Cancer and Cardiovascular Diseases, Osaka, Japan. takeuti-yo@mc.pref.osaka.jp
authors.forename: Yoji
authors.initials: Y
authors.lastname: Takeuchi
authors.forename: Tatsushi
authors.initials: T
authors.lastname: Shingai
authors.forename: Masayuki
authors.initials: M
authors.lastname: Ohue
authors.forename: Kinji
authors.initials: K
authors.lastname: Nishiyama
authors.forename: Yasuhiko
authors.initials: Y
authors.lastname: Tomita
mesh_terms: D000230:Adenocarcinoma / Q000175:diagnosis / Q000556:secondary* / Q000628:therapy; D059248:Chemoradiotherapy; D003113:Colonoscopy / Q000379:methods*; D003937:Diagnosis, Differential; D005500:Follow-Up Studies; D006801:Humans; D007413:Intestinal Mucosa / Q000473:pathology*; D008197:Lymph Node Excision / Q000379:methods*; D008198:Lymph Nodes / Q000473:pathology* / Q000601:surgery; D008207:Lymphatic Metastasis; D008297:Male; D008875:Middle Aged; D009361:Neoplasm Invasiveness; D009367:Neoplasm Staging; D011184:Postoperative Period; D012004:Rectal Neoplasms / Q000473:pathology* / Q000628:therapy