Pulmonary embolic complications may occur during endoscopic treatment of gastric varices using butyl-cyanoacrylate glue. Combined with a contrast agent, in particular Lipiodol, these vascular embols can only be diagnosed by computed tomography without injection of iodinated contrast. We report the case of a 21-year-old patient who presented with bilateral pulmonary embolism due to the injection of this glue into gastric varices.