Most gastric polyps have an asymptomatic presentation and are an incidental finding on upper endoscopy. Symptomatic presentations can range from an ulcerated polyp leading to anemia and occult bleed to complete gastric outlet obstruction. We report a case of an 89-year-old woman who presented with postprandial nausea and early satiety. Her upper endoscopy revealed a 2 cm pedunculated hyperplastic polyp arising from the antrum of the stomach which was seen prolapsing into the pylorus causing intermittent gastric outlet obstruction. In the present report, we statistically analyzed 39 prolapsing gastric polyps previously reported in the English literature and demonstrate the current utility of monopolar snare polypectomy in establishing a histological diagnosis while offering simultaneous treatment. Additionally, we review the literature for the management of all hyperplastic gastric polyps in relation to advancements in digestive endoscopy.

Intermittent gastric outlet obstruction caused by a prolapsing antral gastric polyp.

Foveolar hyperplasia secondary to cow's milk protein hypersensitivity presenting with clinical features of pyloric stenosis.

Idiopathic focal foveolar hyperplasia (FFH) is a rare cause of gastric outlet obstruction in infants. We present two cases, including the first reported association with infantile hypertrophic pyloric stenosis. The diagnostic ultrasound appearance of FFH is described. Optimal treatment is surgical excision of the involved mucosa with pyloroplasty or pyloromyotomy.

/pdf/idiopathic-focal-foveolar-hyperplasia-in-infants-2i0mm1l6ug.pdf

Idiopathic focal foveolar hyperplasia in infants.

Endoscopic submucosal dissection (ESD) is now recognized as the preferred treatment modality for gastrointestinal epithelial lesions. A 21-month-old female was admitted with a giant hyperplastic polyp causing a gastric outlet obstruction. Successful ESD was performed with caution. The post-procedural course was uneventful without a bleeding episode. Although further study of the feasibility of ESD in early children is necessary, ESD could be applied to avoid laparotomy even in young children.

Successful endoscopic submucosal dissection of a giant polyp in a 21-month-old female.

Foveolar cell hyperplasia at the pyloric canal: an unusual cause of gastric outlet obstruction in 3 young children

We describe a rare case of hyperplastic polyp of the stomach having its clinical origin in the neonatal period and initially stimulating hypertrophic stenosis of the pylorus. After this neoformation, which almost completely obstructed the pylorus, was endoscopically removed, vomiting ceased and a rapid weight gain was observed. It is known that tumors are a rare cause of gastric outlet obstruction if compared with hypertrophic stenosis of the pylorus. However, our experience suggests that in the case of atypical symptoms, the investigations should be extended, especially to endoscopic examination of the upper digestive tract.

Hyperplastic polyp of the stomach simulating hypertrophic pyloric stenosis.

Carrier detection andearly diagnosis ofWilson's disease byrestriction fragment length polymorphism analysis

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Hyperplastic polyp of the stomach simulating hypertrophic pyloric stenosis.

Carrier detection andearly diagnosis ofWilson's disease byrestriction fragment length polymorphism analysis