Gastric submucosal arterial dilation from splenic artery occlusion can lead to rare but severe acute upper gastrointestinal bleeding (UGIB), with limitations in detection by endoscopy.
A case involving a 57-year-old male revealed massive UGIB linked to a tortuous left inferior phrenic artery, previously noted "gastric varices," and subsequent endoscopic failure that required transcatheter arterial embolization (TAE) for treatment.
This case is the first to identify UGIB from a tortuous left inferior phrenic artery and underscores the need for alternative methods like TAE to manage arterial bleeding when endoscopy is inadequate.