Extrahepatic portal vein thrombosis.

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Noncirrhotic, nontumoral portal vein

thrombosis (PVT) is the second most-frequent cause of portal hypertension in

the world. General thrombophilic

factors can be identified in approximately 60% of patients. PVT

may manifest as an acute process. However, the acute

episode more frequently is asymptomatic or paucisymptomatic

and portal vein thrombosis is misdiagnosed until the development of

complications secondary to portal hypertension, such as variceal

bleeding or portal biliopathy…..

http://www.peerview-institute.org/news/content.nsf/PaperFrameSet?OpenForm & pp=1 & id=9B7A45A40938478D85257490006CD23C & refid=2439 & specid=999 & newsid=852571020057CCF6852574D0002F1E81 & locref=ntkwatch & u=http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve & db=PubMed & dopt=Abstract & list_uids=18814081