[Submucosal gastric tumour: heterotopic pancreas. A case report and review of the literature]. / Tumor submucoso gástrico: páncreas heterotópico. Presentación de un caso y revisión de la literatura.

Heterotopic pancreas is the presence of pancreatic tissue outside the anatomical location of the pancreas. It is a rare condition and can occur anywhere in the gastrointestinal tract with the stomach and small bowel as the most common sites. It is usually asymptomatic but may become clinically evident when complicates by pathologic changes such as inflammation, bleeding, obstruction and malignant transformation. We report the case of a 49-year-old man who presented with recurrent epigastric pain. The upper gastrointestinal endoscopy revealed a submucosal tumour in the antrum. The histopathology study after surgery showed a heterotopic pancreatic tissue. Ectopic pancreas should be considered in the differential diagnosis of a submucosal gastric tumour.

[Choledochal cyst IV A type with primary ductal stricture]. / Quiste de colédoco tipo IV A.

Type IV A choledochal cyst is a very uncommon disease, characterized by congenital cystic dilatation of the biliary tree extending to the intrahepatic biliary channels also. A case of a 19-year-old female with jaundice and abdominal pain is reported. The patient underwent a thorough clinical, laboratory and imaging examination. Computerized tomography and magnetic cholangiopancreatography revealed a 13.5 cm choledochal cyst with intrahepatic involvement. Excision of the extrahepatic part of cyst was combined with a Roux-en-Y hepaticojejunostomy. A ductal stricture was discovered at the distal part of extrahepatic cyst. There were no perioperative and late complications in the follow-up.