Intramural Pseudocysts of the Upper Gastrointestinal Tract

BACKGROUND: Intramural pseudocysts or pseudocysts occurring in the gastrointestinal tract (GIT) wall are rare and there is a paucity of data on their clinical features and management. PATIENTS AND METHODS: We retrospectively evaluated patients with intramural pseudocysts seen at our institution over the past 6 years. Intramural location was confirmed either on surgery or endoscopic ultrasound (EUS). Depending upon the symptoms, their control with the conservative medical therapy and procedural consent, the patients underwent EUS guided single time aspiration of the pseudocyst or transmural drainage or transpapillary drainage or surgery. RESULTS: A total of 9 patients with intra mural pseudocysts (male: n = 8; mean age ± SD: 39.3 ± 8.0 years; age range: 24-54 years; five patients having chronic and four patients having acute pancreatitis) were studied. The pseudocysts were located in the wall of the second part of the duodenum in five patients, in the gastric wall in three patients and in the lower esophageal wall in one patient. The size of the pseudocysts ranged from 8 mm to 8 cm and 3/9 (33%) patients had associated extra mural pancreatic pseudocysts. All patients had abdominal pain on presentation. Along with pain the patients with duodenal intramural pseduocysts also had symptoms suggestive of gastric outlet obstruction (3) or jaundice (1). The patient with esophageal intramural pseudocyst had dysphagia along with abdominal pain. Majority of these patients could be successfully treated endoscopically with no significant complications. CONCLUSIONS: Intramural pseudocysts of the upper GIT are very rare and EUS is a useful investigational modality for diagnosing and treating them.