Prophylaxis of Post-Endoscopic Retrograde Cholangiopancreatography Pancreatitis Using Temporary Pancreatic Stents Versus Rectal Nonsteroidal Anti-inflammatory Drugs: A Randomized Controlled Trial.

Objectives: Both pancreatic stenting and rectal nonsteroidal anti-inflammatory drugs (NSAIDs) prevent post-endoscopic retrograde cholangiopancreatography (ERCP) pancreatitis. The aim of the study was to compare post-ERCP pancreatitis (PEP) prophylaxis using pancreatic stents and/or rectal NSAIDs prospectively.

Methods: A total of 321 patients undergoing ERCP were studied.

[A Case of Micropapillary Carcinoma in the Sigmoid Colon].

In Japan, the number of the patients with colorectal carcinomas is increasing. Micropapillary carcinoma(MPC)is a rare adenocarcinoma that shows a characteristic histological feature. The first case of MPC was reported in 1993, which originated in the breast.

Endoscopic deployment of multiple (≥ 3) metal stents for unresectable malignant hilar biliary strictures.

 Endoscopic deployment of multiple (≥ 3) self-expandable metal stents (SEMS) for high-grade unresectable malignant hilar biliary strictures (UMHBS) is technically challenging. Eleven consecutive patients with high-grade UMHBS (mean age: 76 years, male/female: 5/6, Bismuth-Corlette classification IIIa/IV: 7/4) underwent endoscopic deployment of multiple SEMS using a combination of side-by-side (SBS) and stent-in-stent (SIS) methods. Technical and clinical success rates were 11/11.

[A case of obstructive jaundice caused by MALT lymphoma of the common bile duct and the papilla of Vater].

We report a rare case of mucosa-associated lymphoid tissue (MALT) lymphoma of the common bile duct and the papilla of Vater. A 66-year-old man was admitted to our hospital with right upper quadrant pain and jaundice. Endoscopic retrograde cholangiopancreatography and magnetic resonance cholangiopancreatography showed common bile duct stenosis.