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Vol. 78. Issue 2.
Pages 114-115 (April - June 2013)
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Vol. 78. Issue 2.
Pages 114-115 (April - June 2013)
Clinical image in gastroenterology
DOI: 10.1016/j.rgmx.2012.07.045
Open Access
Portal venous gas secondary to bowel preparation for colonoscopy
Gas venoso portal secundario a preparación intestinal para colonoscopia
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V.J. Alegre-Sallesa,b,??
Corresponding author
vjasia@gmail.com
geriaclin@hotmail.com

Corresponding author at: Rua José Bonani, 199, Taubaté, São Paulo 12031-260, Brazil. Tel.: +55 012 15 36813888; fax: +55 012 15 36316061.
, S. Migueis-Picadob, C. Aparecido de Paulab
a University of Taubaté, São Paulo, Brazil
b General Surgery Service at the Regional Hospital, Taubaté, São Paulo, Brazil
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A 56-year-old woman was admitted to the emergency room with a one-day history of abdominal distension and epigastric pain. She started having symptoms after bowel preparation for colonoscopy. Abdominal CT scan showed an extremely distended stomach and small bowel (Fig. 1), as well as gas in the hepatic-portal veins (Fig. 2). Hepatic portal venous gas is a rare condition that occurs when intraluminal gas enters the portal venous circulation. Although there have been numerous reported causes, the majority are due to intestinal ischemia, with an estimated mortality rate of 75–80%. Mucosal barrier disruption of any kind can theoretically result in hepatic portal venous gas, but it appears to be more common in intestinal ischemia, inflammatory bowel disease, and peptic ulcer disease. Iatrogenic mucosal tears from endoscopy can also result in this situation. Diagnosis is usually made by plain abdominal radiography, sonography, color Doppler flow imaging, or computed tomography scan. An abdominal CT scan showed the classic sign of dilated vessels extending to within 2cm of the liver capsule, in contrast to biliary gas, which ends up collecting centrally as a result of the centripetal movement of bile.

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Conflict of interest

The authors declare that there is no conflict of interest.

Financial disclosure

No financial support was received in relation to this study.

Copyright © 2012. Asociación Mexicana de Gastroenterología
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Revista de Gastroenterología de México

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