Duodenal ectopic pancreas complicated by chronic pancreatitis and pseudocyst formation: a case report

Abstract

Ectopic pancreas is no longer a rare clinical condition, but its unusual clinical manifestations, locations or complications are of clinical interest. We experienced a case (a 48 year-old male patient) of duodenal ectopic pancreas complicated by chronic pancreatitis and pseudocyst formation of which preoperative imaging findings mimicked a large duodenal submucosal tumor with cystic degeneration such as a leiomyosarcoma. Simultaneous chronic pancreatitis was also demonstrated in the isotopic pancreas of the patient postoperatively. Herein we report a rare clinical condition occurring in an ectopic pancreas with a brief review of the literature.

Pancreatic pseudocyst arising from ectopic pancreas and isolated intestinal duplication in mesocolon caused hydronephrosis in a girl with horseshoe kidney

“…Only 2 cases of such a condition were reported in the literature [6,7]. In both cases, EP was found adjacent to the normal intestinal tract (duodenum and jejunum).…”

Pseudocyst of ectopic pancreas of the duodenal wall masquerading as malignant cystic tumor of pancreas

“…[5] Another reported patient had pancreatitis and pseudocyst formation in ectopic pancreas situated in the jejunum; the features clinically mimicked jejunal diverticulitis. [6]…”

“…[5] The present case was a type II ectopic pancreas, with chronic pancreatitis and pseudocyst formation.…”

Cystic Dystrophy in Heterotopic Pancreas of the Duodenal Wall

“…On the other hand, it demonstrates how the diagnosis of CHDP can be underestimated due to its clinical presentation, often mimicking the pancreatic head mass or chronic pancreatitis [9, 17]. In cases of chronic pancreatitis, the incidence of cystic dystrophy can be as high as 25% [7, 17].…”