A rare case of Ectopic Pancreatic Papillary Intraductal Mucinous Neoplasm in a 10-year-old child: A Case Report

Abstract Background Ectopic pancreas is an uncommon condition, with an incidence of 0.2% identified during laparotomy and 0.5–13.7% during autopsy, with the most frequent location in the gastrointestinal tract. Intraductal papillary mucinous neoplasm (IPMN) is common in the native pancreas, accounting for 12% of pancreatic tumors in patients older than 80 years, but is rare at ectopic sites. To the best of our knowledge, this is the first pediatric case report to be reported in the literature. Case presentation: A 10-year-old female Sukuma presented at Bugando Medical Centre with chronic abdominal pain followed by constipation. Intraoperatively, the duodenal mass was identified, and the resection and anastomosis were done. A cystic and solid submucosal mass measuring 4.5 x 3 x 1.5cm was identified, and histology revealed pancreatic tissue with variable-sized cystic spaces and a few papillary projections lined by a single- to double-layer of intestinal-type epithelium with low-grade dysplasia. No recurrence or any symptom reported after one year of follow-up. Conclusions This is the first case reported on pediatric ectopic pancreatic intraductal papillary mucinous neoplasm, low grade, highlighting the consideration of this condition as a possible differential diagnosis in the pediatric population