Congenital portosystemic shunts with and without gastrointestinal bleeding - case series

Ying Gong1, Hui Zhu2, Jun Chen1

  • 1Department of Radiology, Children's Hospital of Fudan University, 399 Wanyuan Road, Minhang District, Shanghai, 201102, China.

Pediatric Radiology
|July 26, 2015
PubMed

Insights

Congenital portosystemic shunts can present with gastrointestinal bleeding, often associated with extrahepatic shunts draining into the iliac vein. This specific shunt type, though uncommon, shows a high rate of bleeding in children.

Area of Science:

  • Pediatric Radiology
  • Vascular Anomalies
  • Gastroenterology

Background:

  • Congenital portosystemic shunts (CPSS) present variably.
  • Gastrointestinal bleeding is an uncommon manifestation of CPSS.

Purpose of the Study:

  • To detail the imaging characteristics of CPSS.
  • To correlate imaging findings with the presence or absence of gastrointestinal bleeding in pediatric patients.

Main Methods:

  • Retrospective analysis of clinical and imaging data.
  • Inclusion of 11 children diagnosed with CPSS.
  • Categorization based on presence (n=6) or absence (n=5) of gastrointestinal bleeding.

Main Results:

  • Seven extrahepatic and four intrahepatic shunts identified.
  • Gastrointestinal bleeding cases predominantly showed extrahepatic shunts from splenomesenteric junction or splenic vein to internal iliac vein (n=6).
  • Non-bleeding cases included one extrahepatic and four intrahepatic shunts.

Conclusions:

  • Extrahepatic shunts draining portal blood via the inferior mesenteric vein to the iliac vein are linked to gastrointestinal bleeding in CPSS.
  • This specific shunt anatomy is rare but carries a high risk of gastrointestinal bleeding.
Abstract