Gastroduodenal Intussusception Due to Pedunculated Polypoid Gastrointestinal Stromal Tumor / 대한소화기학회지

The gastrointestinal stromal tumor (GIST) is a mesenchymal tumor of the digestive tract showing differentiation along the line of interstitial cell of Cajal. The most GISTs in the stomach generally show the appearance of submucosal tumors. It is rare for GISTs to appear as a pedunculated polypoid lesion on endoscopy. We experienced a case of a 51-year-old man who had a pedunculated polypoid GIST. He was admitted to our hospital for nausea, vomiting, melena and severe anemia (hemoglobin 3.4 g/dL, hematocrit 10.8%). An upper endoscopy showed gastroduodenal intussusception due to a pedunculated polypoid mass. This report presents a rare case of endoscopically proven gastroduodenal intussusceptions due to pedunculated polypoid GIST in the stomach.

A case of lymphoplasmacytic sclerosing pancreatitis with pancreatic adenocarcinoma / 대한내과학회지

Lymphoplasmacytic sclerosing pancreatitis (LPSP) is a rare entity that has been described under many different names; LPSP is an autoimmune form of chronic pancreatitis. LPSP may simulate a neoplastic process both clinically and radiologically. We report a case of LPSP with pancreatic adenocarcinoma. A 70-year-old woman was admitted to our hospital for evaluation of pancreatic duct dilatation. The CA 19-9 level was normal and the antinuclear antibody titer was negative. An abdominal CT revealed a low density nodule, 8 mm in size, in the body of the pancreas with parenchymal atrophy and mild dilatation of the main pancreatic duct in the body and tail portion. Endoscopic retrograde cholangiopancreaticography demonstrated a stricture of the main pancreatic duct in the body of the pancreas and mild dilatation of the upstream duct. She underwent subtotal pancreatectomy and splenectomy. The results of the pathologic examination of the resected tissue included pancreatic ductal adenocarcinoma with pancreatic intraepithelial neoplasia in the background of lymphoplasmacytic sclerosing pancreatitis.

Jejunal Diverticular Bleeding Diagnosed by Double-Balloon Enteroscopy: A Case Report and Review of Literatures / 대한소화기학회지

Jejunal diverticula is a rare disease and an unusual cause of obscure gastrointestinal hemorrhage. Obscure gasterointestinal bleeding is difficult to treat because the bleeding site cannot be identified by routine endoscopy and contrast studies. A wireless capsule endoscopy is not invasive and can visualize the entire small bowel. However, this method has limitations of incapability of taking biopsies and performing endoscopic interventions such as polypectomy or stent insertion. The double-balloon enteroscopy is being used frequently for the diagnosis and management of various small bowel diseases. We report a case of proximal jejunal diverticular bleeding diagnosed by double-balloon enteroscopy and treated with angiographic embolization.