Portal venous gas: different aetiologies and their respective outcomes.

Background: Historically finding of portal venous gas (PVG) has been considered as an ominous sign and an indication for emergency surgery and reportedly has a high mortality rate. However, with the recent increasing use of imaging studies, cases of PVG associated with benign and non-life-threatening causes are increasing. The purpose of our study was to investigate the different aetiologies associated with PVG and their respective outcomes.