title: Laparoscopic Extirpation of a Schwannoma in the Lateral Pelvic Space.
abstract: Schwannomas in the lateral pelvic space are very rare. Here, we report the case of a 48-year-old woman who had a tumor detected in her abdomen by abdominal ultrasonography. Abdominal computed tomography and magnetic resonance imaging revealed a well-defined solid tumor of 65 mm in diameter in the right lateral pelvic space. We performed laparoscopic surgery under a diagnosis of a gastrointestinal tumor or neurogenic tumor. The tumor was safely dissected and freed from the surrounding tissues using sharp and blunt maneuvers. The tumor originated from the right sciatic nerve. Complete laparoscopic extirpation was performed with preservation of the right sciatic nerve. Pathological examination suggested schwannoma. The patient recovered well but had remaining sciatic nerve palsy in her right foot. Laparoscopic extirpation for a schwannoma in the lateral pelvic space was safe and feasible due to the magnified surgical field afforded by laparoscopy.
authors.affiliation: Digestive Disease Center, Showa University Northern Yokohama Hospital, 35-1 Chigasaki-chuou, Tsuzuki-ku, Yokohama 224-8503, Japan.
authors.forename: Eiji
authors.identifier: 0000-0002-0735-7606
authors.initials: E
authors.lastname: Hidaka
authors.affiliation: Digestive Disease Center, Showa University Northern Yokohama Hospital, 35-1 Chigasaki-chuou, Tsuzuki-ku, Yokohama 224-8503, Japan.
authors.forename: Yasuhiro
authors.initials: Y
authors.lastname: Ishiyama
authors.affiliation: Digestive Disease Center, Showa University Northern Yokohama Hospital, 35-1 Chigasaki-chuou, Tsuzuki-ku, Yokohama 224-8503, Japan.
authors.forename: Chiyo
authors.initials: C
authors.lastname: Maeda
authors.affiliation: Digestive Disease Center, Showa University Northern Yokohama Hospital, 35-1 Chigasaki-chuou, Tsuzuki-ku, Yokohama 224-8503, Japan.
authors.forename: Kenta
authors.initials: K
authors.lastname: Nakahara
authors.affiliation: Digestive Disease Center, Showa University Northern Yokohama Hospital, 35-1 Chigasaki-chuou, Tsuzuki-ku, Yokohama 224-8503, Japan.
authors.forename: Shoji
authors.identifier: 0000-0002-6701-4963
authors.initials: S
authors.lastname: Shimada
authors.affiliation: Digestive Disease Center, Showa University Northern Yokohama Hospital, 35-1 Chigasaki-chuou, Tsuzuki-ku, Yokohama 224-8503, Japan.
authors.forename: Shumpei
authors.initials: S
authors.lastname: Mukai
authors.affiliation: Digestive Disease Center, Showa University Northern Yokohama Hospital, 35-1 Chigasaki-chuou, Tsuzuki-ku, Yokohama 224-8503, Japan.
authors.forename: Naruhiko
authors.identifier: 0000-0002-9062-6650
authors.initials: N
authors.lastname: Sawada
authors.affiliation: Digestive Disease Center, Showa University Northern Yokohama Hospital, 35-1 Chigasaki-chuou, Tsuzuki-ku, Yokohama 224-8503, Japan.
authors.forename: Fumio
authors.initials: F
authors.lastname: Ishida
authors.affiliation: Digestive Disease Center, Showa University Northern Yokohama Hospital, 35-1 Chigasaki-chuou, Tsuzuki-ku, Yokohama 224-8503, Japan.
authors.forename: Shin-Ei
authors.identifier: 0000-0002-4268-1217
authors.initials: SE
authors.lastname: Kudo