Intrahepatic portal venous system: variations demonstrated with duplex and color Doppler US.

Fraser-Hill, Margaret; Atri, Mostafa; Bret, Patrice M.; Aldis, Ann; Illescas, Fernando F.; Herschorn, Sally D.

doi:10.1148/radiology.177.2.2217795

Cited by 82 publications

(38 citation statements)

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“…This study and other case reports demonstrate the importance of long-term follow-up of infants with PVT. 2,19 Atrophy of the left hepatic lobe, previously considered a normal variant, 20,21 was diagnosed in 30 infants. A correlation between hepatic lobar atrophy and ipsilateral portal vein obstruction has been reported in adults.…”

Section: Discussionmentioning

confidence: 99%

Portal vein thrombosis in the neonate: Risk factors, course, and outcome

Morag

Epelman

Daneman

et al. 2006

The Journal of Pediatrics

117

122

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Section: Discussionmentioning

confidence: 99%

Portal vein thrombosis in the neonate: Risk factors, course, and outcome

Morag

Epelman

Daneman

et al. 2006

The Journal of Pediatrics

117

122

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“…The absence of bifurcation of the portal vein is a rare anomaly and a large-scale study performed by ultrasound examination reported that its incidence was only 0.09% [1]. The complicated development of the portal vein occurs early in fetal life.…”

mentioning

confidence: 99%

A case of absence of extrahepatic portal bifurcation in biliary atresia

Kanamori¹,

Sato²,

Yamada³

et al. 2013

Journal of Pediatric Surgery

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“…Knowledge of these typical fi ndings should help Keywords liver · portal vein · anatomy · ultrasound · doppler Although abdominal ultrasound (US) examinations are routinely carried out in the clinical setting throughout Japan, and although congenital anomaly of the portal vein is not remarkably infrequent, few US fi ndings have been reported. [1][2][3][4] We describe a case of congenital absence of the horizontal (transverse) portion of the left portal vein. Knowledge of such ultrasound fi ndings can help prevent hazardous misdiagnoses.…”

Section: Discussionmentioning

confidence: 99%

Congenital absence of the horizontal portion of the left portal vein

et al. 2008

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Congenital absence of the horizontal portion of the left portal vein vessel to be from P5 toward P4. This led to our diagnosis of congenital absence of the horizontal portion of the left portal vein. CommentsThe adult portal vein and hepatic veins are the descendants of the vitelline and umbilical veins in embryo. Early in intrauterine life there are many anatomic channels between the vitelline and umbilical veins. As the embryo matures, certain channels regress and others become more prominent. The anatomic channels connecting the caudal portion of the right vitelline vein and the left umbilical veins form the horizontal portion of the left portal vein. If this anastomosis fails to develop normally, another venous channel maintains the communication. 3 Clinically, this event is represented by the congenital absence of the horizontal portion of the left portal vein and the development of an aberrant vessel feeding the left lobe. As a result, the left lobe is suffi ciently fed by this aberrant vessel and does not atrophy. US demonstrates this anomaly as an echogenic line in the usual location of the horizontal portion of the left portal vein, the undeveloped horizontal portion, and a large aberrant vessel communicating between the anterior segmental branch of the right portal vein and the vertical portion of the left portal vein. The fl ow direction of the aberrant vessel is always from the former toward the latter. If the entire course of the portal vein is carefully observed with US and color Doppler US, there is very little room for ambiguity in diagnosing this extremely rare congenital anomaly. ConclusionsWe report a case of congenital absence of the horizontal portion of the left portal vein, with an emphasis on US and Doppler fi ndings. This case shows that caution must be exercised when US visualizes a large vessel communicating with P4 and P5. Knowledge of these typical fi ndings should help

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Intrahepatic portal venous system: variations demonstrated with duplex and color Doppler US.

Cited by 82 publications

References 0 publications

Portal vein thrombosis in the neonate: Risk factors, course, and outcome

Portal vein thrombosis in the neonate: Risk factors, course, and outcome

A case of absence of extrahepatic portal bifurcation in biliary atresia

Congenital absence of the horizontal portion of the left portal vein

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