Abstract
A 25-year-old man who was pointed out esophageal varix without impaired hepatic function, was admitted to our hospital for further examination for portal hypertension. Gastrointestinal endoscopy showed a smooth protruded lesion with normal mucosal cover-ing in the duodenal bulb, and ultrasonography revealed enlarged, tortuous vessels near the hepatic hilum, so this tumor was highly suspected as varix of the duodenal bulb. Celiac arterioportography revealed extrahepatic portal obstruction and dilated collateral vein was running tortuously from the portion of obstruction to the hepatic hilum via the duodenal bulb. Most of the causes for varix of the duodenal bulb are hepatopetal collaterals, and these vessels are developed especially by extrahepatic portal obstruction. Varix of the duodenal bulb is one of the differential diagnosis for duodenal tumor. So this condition is suspected, it is important to examine portal system by angiography.
