Background. Pyloroduodenal intussusception (PDI) due to gastric and pyloric polyps is very rare and has not been reported previously in children. Case. A 3 year-old boy was admitted with non-bilious vomiting and abdominal distention. Abdominal X-ray showed gastric air-fluid level and ultrasonography showed 5 cm intussusception at right upper quadrant. Upper gastrointestinal study showed gastric outlet obstruction. Multiple polyps at stomach and pylorus were detected in endoscopy. The explorative laparotomy revealed polyps originating from pylorus passing to duodenum and causing PDI. The polyps were excised to reduce the intussusception via duodenotomy.Conclusion. PDI and pyloric polyps should be kept in mind in cases with radiological examinations revealing gastric outlet obstruction.
1. Mestre JR. The changing pattern of juvenile polyps. Am J Gastroenterol 1986; 81: 312-314.
2. Cobum MC, Pricolo VE, DeLuca FG, Bland KI. Malignant potential in intestinal juvenile polyposis syndromes. Ann Surg Oncol 1995; 2: 386-391.
3. Yalcin S, Ciftci AO, Karaagaoglu E, Tanyel FC, Şenocak ME. Presenting clinical features and outcome in intussusception. Indian J Pediatr 2009; 76: 401-405.
4. Navarro O, Deneman A. Intussusception Part 3: diagnosis and management of those with an identifiable or predisposing cause and those that reduce spontaneously. Pediatr Radiol 2004; 34: 305- 312.
5. Behrens S, Obando J, Blazer III DG. Gastric intussusception secondary to fundic gland polyposis. J Gastraintest Surg 2019; 23: 1073-1074.
6. Behrooz A, Cleasby M. Gastrogastric intussusception in adults: a case report with review of the literature. BJR Case Rep 2018; 4: 20180006.
7. Rittenhause DW, Lim PW, Shirley LA, Chonjnacki KA. Gastrodueodenal intussusception of a gastrointestinal stromal tumor (GIST): case report and review of the literature. Surg Laparosc Endosc Percutan Tech 2013; 23: e70-e73.