title: A case of advanced colonic cancer that developed from residual laterally spreading tumor treated by piecemeal endoscopic mucosal resection.
abstract: This case report showed a laterally spreading tumor treated by endoscopic mucosal resection that developed as an advanced colon cancer. A 74-year-old female was visited to treat a colon tumor that was pointed out at another hospital. Total colonoscopy revealed a laterally spreading tumor (LST) 25 mm in diameter in the cecum. The lesion was diagnosed as homogenous granular type LST (G-type LST) and treated by endoscopic piecemeal mucosal resection in January 2004. A tumor was recognized by follow-up endoscopic examination in April 2006. The scar of endoscopic piecemeal mucosal resection had developed to advanced colon cancer and was treated by laparoscopy-associated ileocecal resection with D3 lymph node resection. Previous reports indicated that G-type LST in the colon could be treated by piecemeal resection, but this report suggests that G-type LST resected by piecemeal endoscopic mucosal resection might develop to advanced colon cancer.
authors.affiliation: Department of Internal Medicine and Endoscopy, Saga Medical School, 5-1-1 Nabeshima, Saga, 849-8501, Japan. tsunada@cc.saga-u.ac.jp.
authors.forename: Seiji
authors.initials: S
authors.lastname: Tsunada
authors.affiliation: Department of Internal Medicine and Endoscopy, Saga Medical School, 5-1-1 Nabeshima, Saga, 849-8501, Japan.
authors.forename: Kotaro
authors.initials: K
authors.lastname: Mannen
authors.affiliation: Department of Internal Medicine and Endoscopy, Saga Medical School, 5-1-1 Nabeshima, Saga, 849-8501, Japan.
authors.forename: Kanako
authors.initials: K
authors.lastname: Yamaguchi
authors.affiliation: Department of Pathology and Biodefense, Saga Medical School, Saga, Japan.
authors.forename: Shigehisa
authors.initials: S
authors.lastname: Aoki
authors.affiliation: Department of Pathology and Biodefense, Saga Medical School, Saga, Japan.
authors.forename: Kazuyoshi
authors.initials: K
authors.lastname: Uchihashi
authors.affiliation: Department of Pathology and Biodefense, Saga Medical School, Saga, Japan.
authors.forename: Shuji
authors.initials: S
authors.lastname: Toda
authors.affiliation: Department of Internal Medicine and Endoscopy, Saga Medical School, 5-1-1 Nabeshima, Saga, 849-8501, Japan.
authors.forename: Takehiro
authors.initials: T
authors.lastname: Fujise
authors.affiliation: Department of Internal Medicine and Endoscopy, Saga Medical School, 5-1-1 Nabeshima, Saga, 849-8501, Japan.
authors.forename: Ryo
authors.initials: R
authors.lastname: Shimoda
authors.affiliation: Department of Internal Medicine and Endoscopy, Saga Medical School, 5-1-1 Nabeshima, Saga, 849-8501, Japan.
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Sakata
authors.affiliation: Department of Internal Medicine and Endoscopy, Saga Medical School, 5-1-1 Nabeshima, Saga, 849-8501, Japan.
authors.forename: Ryuichi
authors.initials: R
authors.lastname: Iwakiri
authors.affiliation: Department of Internal Medicine and Endoscopy, Saga Medical School, 5-1-1 Nabeshima, Saga, 849-8501, Japan.
authors.forename: Kazuma
authors.initials: K
authors.lastname: Fujimoto
keywords: Adenoma; Endoscopy; Follow-up; Laparoscopy