Gastric Outlet Obstruction Caused by a Heterotopic Pancreas in a Pregnant Woman: Report of a Case

Abstract

A 26-year-old Japanese woman who was 23 weeks pregnant presented with nausea, vomiting, and abdominal pain. Gastroduodenal endoscopic examination revealed an oval-shaped submucosal tumor obstructing the gastric outlet at the prepyloric area in the stomach. Magnetic resonance imaging showed a 5-cm cystic tumor and we suspected a degenerated gastrointestinal stromal tumor. No other radiological tests were done because of the associated risks to the fetus. Distal gastrectomy was performed and a histological diagnosis of heterotopic pancreas was confirmed. The patient had an uneventful postoperative course and was discharged 19 days after her operation. She delivered a healthy, full-term male infant 3 months later. This case of an ectopic pancreas obstructing the gastric outlet in a pregnant woman is reported and discussed due to its rarity.

Gastric outlet obstruction caused by heterotopic pancreas in a patient with alcohol use disorder

“…HP is often clinically silent, however may rarely become symptomatic. If located in the gastric antrum, in the setting of inflammation or enlargement of HP, GOO may occur ( Table 1 ) [11] , [12] , [13] , [14] , [15] , [16] , [17] , [18] . HP can develop pancreatic adenocarcinoma as previously reported by other groups [11] .…”

Clinical classification of symptomatic heterotopic pancreas of the stomach and duodenum: A case series and systematic literature review

“…Nevertheless, obstruction is also seen in adults where ectopic lesions grow to a size that can lead to mechanical obstruction as seen in Case 4[ 41 ]. Lesions that are small and otherwise asymptomatic for decades, may also become acutely symptomatic in setting of inflammation and edema[ 60 , 92 ]. Likewise, the development of cysts and fluid collections within the wall of the stomach may grow to a size that can impede gastric emptying[ 163 ].…”

Morphological characteristics of the pancreatic heterotopia in the major duodenal papilla

“…It can cause gastrointestinal bleeding and m alig nant tumors of gastrointestinal tract [3,10,12]. HP can also leads to gastric outlet obstruction or duodenal stenosis [8].…”