GASTRIC OUTLET OBSTRUCTION

GASTRIC OUTLET OBSTRUCTION

• The two common causes of gastric outlet obstruction are gastric cancer (see Gastric cancer ) and pyloric stenosis secondary to peptic ulceration. With the decreasing incidence of peptic ulceration gastric outlet obstruction should be considered malignant until proven otherwise. In this circum - stance the metabolic consequences may be somewhat di ff erent from those of benign pyloric stenosis because of the relative hypochlorhydria found in patients with gastric cancer.