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Primary adult hypertrophic pyloric stenosis is a rare but important cause of gastric outlet obstruction that may be misdiagnosed as idiopathic gastroparesis.Clinically,patients present with early satiety,abdominal fullness,nausea,epigastric discomfort and eructation.Permanent gastric retention of a video capsule endoscope is diagnostic in differentiating between the two diseases,in the absence of an organic gastric outlet obstruction.This case presents the longest video capsule retention in the medical literature to date.It is also the first case report of adult hypertrophic pyloric stenosis diagnosed with video capsule endoscopy or a computed tomography scan.Finally,an unusual“plugging”of the gastric outlet with free floating capsule has an augmented effect on disease physiology and on patient’s symptoms.
Primary adult hypertrophic pyloric stenosis is a rare but important cause of gastric outlet obstruction that may be misdiagnosed as idiopathic gastroparesis. Clinically, patients present with early satiety, abdominal fullness, nausea, epigastric discomfort and eructation. Permanent gastric retention of a video capsule endoscope is diagnostic in differentiating between the two diseases, in the absence of an organic gastric outlet obstruction.This case presents the longest video capsule retention in the medical literature to date. It is also the first case report of adult hypertrophic pyloric stenosis diagnosed with video capsule endoscopy or a computed tomography scan. Finally, an unusual “plugging ” of the gastric outlet with free floating capsule has an augmented effect on disease physiology and on patient’s symptoms.