title: [A case report of Ewing's sarcoma with a peripheral primitive neuroectodermal tumor (ES/pPNET) in the abdominal cavity].
abstract: In this report, we present a rare case of Ewing's sarcoma with a peripheral primitive neuroectodermal tumor (ES/pPNET) arising from the abdominal cavity in a 20-year-old woman. The patient complained of upper abdominal pain. Radiological imaging showed a 15-cm mass penetrating to the proxymal jejunum in the upper abdominal cavity and peritoneal disseminations. Immunohistochemical studies revealed that the tumor was ES/pPNET. Although the patient underwent radiation therapy, she died of the disease two months after diagnosis. ES/pPNET in the abdominal cavity is extremely rare and our case showed aggressive behavior and an unfortunate outcome.
authors.affiliation: Department of Gastroentelogy, Sendai Medical Center. hiro-ki@mb.mni.ne.jp
authors.forename: Hiroki
authors.initials: H
authors.lastname: Takahashi
authors.forename: Nobuyuki
authors.initials: N
authors.lastname: Chida
authors.forename: Kenji
authors.initials: K
authors.lastname: Kimura
authors.forename: Yoko
authors.initials: Y
authors.lastname: Yamao
authors.forename: Kaori
authors.initials: K
authors.lastname: Shiotuka
authors.forename: Hideaki
authors.initials: H
authors.lastname: Ritsuno
authors.forename: Satoshi
authors.initials: S
authors.lastname: Awabuchi
authors.forename: Hiromichi
authors.initials: H
authors.lastname: Akoshima
authors.forename: Mikako
authors.initials: M
authors.lastname: Sugimura
authors.forename: Kenji
authors.initials: K
authors.lastname: Noguchi
authors.forename: Nobukazu
authors.initials: N
authors.lastname: Tanabe
authors.forename: Masahiro
authors.initials: M
authors.lastname: Iwabuchi
authors.forename: Yutaka
authors.initials: Y
authors.lastname: Mano
authors.forename: Keiichi
authors.initials: K
authors.lastname: Tadokoro
authors.forename: Hiroyoshi
authors.initials: H
authors.lastname: Suzuki
mesh_terms: D034841:Abdominal Cavity; D000008:Abdominal Neoplasms / Q000473:pathology*; D017809:Fatal Outcome; D005260:Female; D006801:Humans; D017599:Neuroectodermal Tumors / Q000473:pathology*; D010524:Peripheral Nervous System Neoplasms / Q000473:pathology*; D012512:Sarcoma, Ewing / Q000473:pathology*; D055815:Young Adult