Gastrointestinal duplications can occur in any part of the gastrointestinal tract from the mouth to the anus. Duplication cysts (DC) may present with various clinical findings according to their location and may be confused with other cystic lesions. A 10-year-old male patient referred to our hospital with abdominal pain and vomiting. Abdominal examination revealed a palpable mass in the epigastric region. Laboratory tests indicated elevated levels of serum amylase. Ultrasonography and computed tomography imaging revealed 9x15 cm dense cystic lesion with internal echoes in the anterior vicinity of the pancreatic corpus-tail. The patient, who had no history of medication use, trauma, or previous episodes of pancreatitis, underwent surgery with the preliminary diagnosis of gastric duplication, after exclusion of pancreatic pseudocyst. In the surgical examination, DC originating from the posterior wall of stomach was detected and excised. In this case report, a gastric DC that mimicked pancreatic pseudocyst, causing an increase in pancreatic enzymes by exerting pressure on the pancreas, has been discussed in terms of clinical features and surgical options.
Keywords: Duplication Cyst, Stomach, Pancreatic Pseudocyst, Child
