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IF値: 0.966(2018年)→0.898(2019年)


Journal of Medical Ultrasonics

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1989 - Vol.16

Vol.16 No.02

Case Report(症例報告)

(0189 - 194)


Sonographic Demonstration of Concurrent Preduodenal Portal Vein and Azygos Continuation of the Inferior Vena Cava Associated with Polysplenia Syndrome

北村 隆信1, 4, 竹内 和男1, 村島 直哉1, 橋本 光代1, 吉田 行哉1, 中島 正男1, 黒崎 敦子2, 桑山 美知子3

Takanobu KITAMURA1, 4, Kazuo TAKEUCHI1, Naoya MURASHIMA1, Mitsuyo HASHIMOTO1, Yukiya YOSHIDA1, Masao NAKAJIMA1, Atsuko KUROSAKI2, Michiko KUWAYAMA3

1虎の門病院消化器科, 2虎の門病院放射線診断学科, 3虎の門病院臨床生理検査室, 4平塚胃腸病院外科

1Division of Gastroenterology, Toranomon Hospital, 2Division of Radiology, Toranomon Hospital, 3Division of Clinical Physiology, Toranomon Hospital, 4Department of Surgery, Hiratsuka Gastrointestinal Hospital

キーワード : Ultrasonography, Anomaly of the umbilical portion of the portal vein, Preduodenal portal vein, Azygos continuation of inferior vena cava, Polysplenia syndrome

Sonographic findings of multiple developmental anomalies, including preduodenal portal vein, azygos continuation of the inferior vena cava, left-sided gallbladder and polysplenia, demonstrated in an asymptomatic 30-year-old male are reported.
In addition to the preduodenal portal vein, anomalous positioning of the umbilical portion (UP) of the portal vein (PV) was also noted.
The anomalous UP was formed by the base of the right anterior segmental branch of the portal vein (PV), while the normal UP in the left hepatic lobe was absent. The round ligament was found on sonography to originate from the top of the anomalous UP.
We have named this anomalous UP of the PV "right-sided UP".