Prehepatic portal hypertension with aneurysm of the portal vein: Unusual but treatable malformative pattern

Arianna Bertocchini, Giuseppe D'Ambrosio, Chiara Grimaldi, Laura Del Prete, Fabrizio Di Francesco, Piergiorgio Falappa, Lidia Monti, Jean De Ville De Goyet

Research output: Contribution to journalArticle

Abstract

Introduction Portal vein aneurysms (PVAs) are usually located at the vein trunk or at its bifurcation, rarely intra-hepatic, or at the umbilical portion. Etiology remains unclear. Methods Three children with PVA were identified over a 5-year period. PVA anatomy was assessed by Doppler Ultrasound, Angio CT/MRI, and trans-jugular retrograde portography. Results Three children with intrahepatic PVA (including the umbilical portion) were identified during assessment for pre-hepatic portal hypertension: all had splenomegaly and hypersplenism. One presented with massive variceal bleeding. In two cases, a portal vein cavernoma was found, and in the third a severe stricture at the portal bifurcation was observed. Restoration of portal venous flow was achieved by a meso-Rex bypass in two cases and transposing the PV into the Rex in one. High hepatopetal portal flow was restored immediately, with follow-up confirming long-term patency and resolution of signs of portal hypertension with time. Conclusions These original observations suggest a common initial malformative pattern consisting of a portal venous stricture/web causing a post-stenotic aneurysmal dilatation of the intrahepatic portal branches complicated by thrombosis and cavernomatous transformation of the portal vein trunk. Importantly, the Meso-Rex bypass allows restoring a normal portal flow and cures the portal hypertension.

Original languageEnglish
Pages (from-to)436-440
Number of pages5
JournalJournal of Pediatric Surgery
Volume49
Issue number3
DOIs
Publication statusPublished - 2014

Keywords

  • Extrahepatic portal hypertension
  • Intrahepatic portal vein
  • Meso Rex bypass
  • Rex recessus
  • Vein Aneurysm

ASJC Scopus subject areas

  • Surgery
  • Pediatrics, Perinatology, and Child Health
  • Medicine(all)

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