title: Single-port transumbilical laparoscopic excision of retroperitoneal schwannoma mimicking a nonfunctional endocrine tumor in the body of the pancreas: a case report.
abstract: Schwannomas are benign tumors that arise from neural sheath Schwann cells. Solitary benign schwannoma is generally located in the head and neck and is a rare neoplasm among the tumors of the retroperitoneal space. Reports of laparoscopic excision of retroperitoneal schwannomas have recently been on the increase. However, few cases of single-port laparoscopic excision of these tumors have been reported. Moreover, there are no reports of single-port excision of schwannomas attached to the body of pancreas and around the splenic vessels. This is the first report of a schwannoma lying adjacent to the body of the pancreas between the splenic artery and vein that was excised by single-port laparoscopic surgery. The most notable aspect of our procedure is the use of bipolar forceps. Single-port laparoscopic excision using bipolar forceps is a feasible and safe procedure for retroperitoneal solitary tumors, even when they are close to the splenic artery and vein.
authors.affiliation: 1International Goodwill Hospital, Yokohama, Japan.
authors.forename: Noriaki
authors.initials: N
authors.lastname: Kameyama
authors.forename: Masato
authors.initials: M
authors.lastname: Tomita
authors.forename: Hiroaki
authors.initials: H
authors.lastname: Mitsuhashi
authors.forename: Nobuaki
authors.initials: N
authors.lastname: Matsumoto
authors.forename: Toru
authors.initials: T
authors.lastname: Obuchi
authors.forename: Yusuke
authors.initials: Y
authors.lastname: Yoshikawa
authors.forename: Nobumi
authors.initials: N
authors.lastname: Tagaya
authors.forename: Yuko
authors.initials: Y
authors.lastname: Kitagawa
mesh_terms: D005260:Female; D006801:Humans; D010535:Laparoscopy / Q000379:methods*; D008875:Middle Aged; D009442:Neurilemmoma / Q000601:surgery*; D010190:Pancreatic Neoplasms / Q000601:surgery*; D012186:Retroperitoneal Neoplasms / Q000601:surgery*; D012187:Retroperitoneal Space / Q000601:surgery