title: A neonatal case of thoracoabdominal duplication associated with right congenital diaphragmatic hernia, absent inferior vena cava, and congenital portoazygous shunt: etiopathogenesis and surgical management.
abstract: We report on a neonatal case of thoracoabdominal duplication associated with a split notochord syndrome and multiple anomalies. A newborn girl had severe dyspnea and was transferred to our neonatal care unit. At laparotomy, the entire small bowel was herniated into the posterior mediastinum through a defect in the right hemidiaphragm. The small bowel mesentery was firmly fixed to the mediastinum such that a large part of the small bowel could not be repositioned into the abdominal cavity. Imaging studies revealed an absent inferior vena cava with an azygous continuation. The superior mesenteric vein joined the splenic vein to form a portoazygous shunt that ran caudally through the mediastinum and drained into the azygous vein. The patient's intrahepatic portal vein was completely absent. To the best of our knowledge, this is the first reported case of a thoracoabdominal duplication associated with a portoazygous shunt. The etiopathogenesis and surgical management of this complicated case are discussed.
authors.affiliation: Department of Pediatric Surgery, Kimitsu Chuo Hospital, Kisarazu 292-8535, Japan. hishiki@faculty.chiba-u.jp <hishiki@faculty.chiba-u.jp>
authors.forename: Tomoro
authors.initials: T
authors.lastname: Hishiki
authors.forename: Yoshiteru
authors.initials: Y
authors.lastname: Ohsone
authors.forename: Shunsuke
authors.initials: S
authors.lastname: Tatebe
authors.forename: Hideo
authors.initials: H
authors.lastname: Kawarasaki
authors.forename: Koichi
authors.initials: K
authors.lastname: Mizuta
authors.forename: Takeshi
authors.initials: T
authors.lastname: Saito
authors.forename: Elena
authors.initials: E
authors.lastname: Terui
authors.forename: Toshinori
authors.initials: T
authors.lastname: Muramatsu
mesh_terms: D000015:Abnormalities, Multiple; D018376:Cardiovascular Abnormalities / Q000209:etiology* / Q000601:surgery*; D017809:Fatal Outcome; D005260:Female; D006548:Hernia, Diaphragmatic / Q000601:surgery*; D065630:Hernias, Diaphragmatic, Congenital; D006801:Humans; D006976:Hypertension, Pulmonary / Q000209:etiology; D007231:Infant, Newborn; D009205:Myocarditis / Q000209:etiology; D009672:Notochord / Q000002:abnormalities; D013131:Spine / Q000002:abnormalities; D014682:Vena Cava, Inferior / Q000002:abnormalities*