Two cases of gastric varices were treated by balloon-occluded retrograde transvenous obliteration via the pericardiophrenic vein at our hospital, and both were successful. One case developed left hydrothorax. Gastric varices did not bled and esophageal varices were not aggravated in both cases for 24-30 months thereafter. These outcomes indicate the feasibility of balloon-occluded retrograde transvenous obliteration via the pericardiophrenic vein.