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Agenesis of the horizontal segment of the left portal vein demonstrated by magnetic resonance imaging including phase-contrast magnetic resonance venography.

Abstract：

:Two cases of agenesis of the horizontal segment of the left portal vein are reported. This very rare vascular anomaly probably corresponds to an embryological variation rather than to an obstruction of the left portal vein. In almost all cases liver ultrasonography is sufficient for identifying such vascular abnormalities. It shows a large aberrant vessel emerging from a right anterior segmental portal branch and running transversely in the quadrate lobe towards the teres ligamentum from which the portal supply to the left lobe arises. It is important to be able to recognize the magnetic resonance imaging features of this vascular variation, as magnetic resonance imaging may be the initial imaging study, and ultrasound may be technically challenging. To our knowledge, we present the first description of these features, including an enhanced gradient-echo T1-weighted sequence, a turbo spin-echo T2-weighted sequence with fat saturation, and a three-dimensional phase-contrast magnetic resonance portography.

journal_name

Eur Radiol

journal_title

European radiology

authors

Chevallier P,Oddo F,Baldini E,Peten EP,Diaine B,Padovani B

doi

10.1007/s003300050057

subject

Has Abstract

pub_date

2000-01-01 00:00:00

pages

365-7

issue

2

eissn

0938-7994

issn

1432-1084

pii

00100365.330

journal_volume

10

pub_type

杂志文章

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