Gastric Outlet Obstruction Secondary to Gastric Adenocarcinoma Diagnosed on Ultrasonography.

Gastric outlet obstruction often manifests as a result of mural, luminal, or extrinsic compression. Due to capacity of the stomach to distend 2-4 L after food intake, gastric outlet obstruction secondary to a malignant cause goes often undetected clinically until a high-grade obstruction develops. Gastric adenocarcinoma seldom manifests as gastric outlet obstruction secondary to a partially obstructing mass or a stricture that develops due to peptic ulceration. Fatal sequelae and serious complications of gastric outlet obstruction may result when early detection and appropriate intervention such as gastric decompression and surgical resection are delayed. This report describes a rare case of gastric adenocarcinoma causing gastric outlet obstruction diagnosed on ultrasonography in a 40-year-old female.