title: Laparoscopic-endoscopic cooperative surgery for a duodenal neuroendocrine tumor: A case report.
abstract: For neuroendocrine tumor G1, local resection is one of the primary treatment options. Endoscopic submucosal dissection has been proven to ensure complete resection with sufficient margins. However, duodenal endoscopic submucosal dissection has a high risk of duodenal perforation because of the thin duodenal wall and poor endoscopic maneuverability. During laparoscopic dissection, suturing can resolve perforation. Therefore, laparoscopic-endoscopic cooperative surgery (LECS) can ensure complete resection with a minimal margin to prevent stenosis, and suturing can resolve perforation. In short, LECS combines the advantages of both techniques. In the present case, a duodenal neuroendocrine tumor G1 in a 75-year-old man was successfully treated using LECS. The patient remained free from recurrence at 21 months postoperatively. LECS is feasible for a neuroendocrine tumor G1 ≤20 mm in size that has not invaded the muscularis propria or the lymphatic and venous vessels.
authors.affiliation: Department of Comprehensive Surgery, Shiga University of Medical Science, Otsu, Japan.
authors.forename: Yoshinobu
authors.identifier: http://orcid.org/0000-0001-9245-3135
authors.initials: Y
authors.lastname: Nagasawa
authors.affiliation: Department of Comprehensive Surgery, Shiga University of Medical Science, Otsu, Japan.
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Okauchi
authors.affiliation: Department of Comprehensive Surgery, Shiga University of Medical Science, Otsu, Japan.
authors.forename: Masatsugu
authors.initials: M
authors.lastname: Kojima
authors.affiliation: Department of Comprehensive Surgery, Shiga University of Medical Science, Otsu, Japan.
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Setoyama
authors.affiliation: Department of Comprehensive Surgery, Shiga University of Medical Science, Otsu, Japan.
authors.forename: Masato
authors.initials: M
authors.lastname: Hasegawa
authors.affiliation: Department of Comprehensive Internal Medicine, Shiga University of Medical Science, Otsu, Japan.
authors.forename: Hiroo
authors.initials: H
authors.lastname: Mizuta
authors.affiliation: Department of Comprehensive Internal Medicine, Shiga University of Medical Science, Otsu, Japan.
authors.forename: Tomoyuki
authors.initials: T
authors.lastname: Tsujikawa
authors.affiliation: Department of Surgery, Shiga University of Medical Science, Otsu, Japan.
authors.forename: Masaji
authors.initials: M
authors.lastname: Tani
authors.affiliation: Department of Comprehensive Surgery, Shiga University of Medical Science, Otsu, Japan.
authors.forename: Yoshimasa
authors.initials: Y
authors.lastname: Kurumi
mesh_terms: D000368:Aged; D004379:Duodenal Neoplasms / Q000601:surgery*; D006801:Humans; D010535:Laparoscopy / Q000379:methods*; D008297:Male; D018358:Neuroendocrine Tumors / Q000601:surgery*
keywords: Duodenal neuroendocrine tumor; endoscopic submucosal dissection; laparoscopic-endoscopic cooperative surgery