Prospective study on planned biliary stent placement to treat small common bile duct stones.

Aims: Small common bile duct stones are known to occasionally clear spontaneously. This study aimed to prospectively assess the role of biliary stent placement in promoting the spontaneous clearance of small common bile duct stones.

Methods And Results: We analyzed patients presenting with common bile duct stones of ≤5 mm diameter between June 2020 and May 2022.

[Successful portal vein stent placement for chronic portal vein stenosis 5 years after pancreatoduodenectomy:a case report].

A 73-year-old man underwent pancreatoduodenectomy 5 years previously, and portal vein stenosis was observed immediately after surgery. A collateral vein with varices around the hepaticojejunostomy gradually developed. The patient experienced repeated episodes of melena that required transfusion.

Successful endoscopic submucosal dissection of early gastric cancer located on gastric varices after treatment with balloon-occluded retrograde transvenous obliteration.

Gastric varices occur in patients with liver cirrhosis and cause major bleeding when they rupture. We report a case of an 80-year-old man with liver cirrhosis and chronic renal failure who was diagnosed with a gastric tumor located on gastric varices that had increased in size. The patient underwent balloon-occluded retrograde transvenous obliteration (BRTO) to control bleeding, and the gastric varices were eradicated.

Large Balloon Anchor Technique for Endoscopic Retrograde Cholangiopancreatography Required for Esophagogastroduodenal Deformities.

Objective It is difficult to insert a side-viewing duodenoscope during endoscopic retrograde cholangiopancreatography in patients with esophagogastroduodenal deformities. To evaluate the efficacy and safety of using a large balloon anchor technique for cases in which inserting side-viewing duodenoscopes is difficult. Methods We retrospectively examined patients with endoscopic retrograde cholangiopancreatography who required the large balloon anchor technique between April 2016 and October 2020.

[Diagnostic utility of endoscopic ultrasonography elastography and contrast-enhanced harmonic endoscopic ultrasonography in a patient with type 2 autoimmune pancreatitis].

A referring hospital diagnosed a 57-year-old man with a pancreatic head mass. The initial endoscopic ultrasonography-guided fine needle aspiration (EUS-FNA) was inconclusive because of the small sample size. Endoscopic ultrasonography elastography (EUS-EG) and contrast-enhanced harmonic endoscopic ultrasonography (CE-EUS), conducted at our institute, raised the possibility of mass-forming pancreatitis or autoimmune pancreatitis (AIP).

A case report of mixed acinar-endocrine carcinoma of the pancreas treated with S-1 chemotherapy: Does it work or induce endocrine differentiation?

Rationale: Acinar cell carcinomas (ACCs) and mixed acinar-endocrine carcinomas (MAECs) of the pancreas are rare, accounting for only 1% of pancreatic tumors. Although both typically present at an advanced stage, chemotherapeutic regimes have not yet been standardized.

Patient Concerns: A 65-year-old man presented with a large mass in the pancreatic tail with multiple liver metastases.

[A case of gallbladder carcinoma following cholecystogastric fistula].

A 79-year-old woman with pneumobilia and liver dysfunction was admitted to our hospital. ERCP and gastrointestinal endoscopy revealed choledochal stones and a cholecystogastric fistula at the greater curvature of the gastric antrum. The risk of cholecystectomy and fistulectomy appeared to be extremely high for this patient because of her advanced age and low respiratory function due to interstitial pneumonia.

[Double esophageal carcinosarcomas showing rapid growth of a new polypoid tumor after sloughing of another polypoid tumor].

A 55-year-old man presented at our hospital with a large polypoid esophageal tumor. Initial upper gastrointestinal endoscopy revealed that this tumor had sloughed off to be replaced with ulceration in the thoracic esophagus. However, after the tumor at the thoracic esophagus sloughed off, a semi-circular, superficial, flat squamous cell carcinoma was observed adjacent to the ulceration.

[Eosinophilic cholangitis from almost normal appearance to the bile duct sclerosis similar to primary sclerosing cholangitis].

A 48-year-old man was admitted to our hospital because of eosinophilia and liver dysfunction. Initial abdominal CT and MRI (MRCP) finding showed almost normal liver and bile duct. Liver biopsy demonstrated mild portal infiltration of lymphocytes and eosinophils.

[A case of combined syndrome of juvenile polyposis and hereditary hemorrhagic telangiectasia associated with SMAD4 mutation].

A 47-year-old man was found to have abnormal findings on chest radiography. Chest computed tomography (CT) and magnetic resonance imaging (MRI) showed that he had a pulmonary arteriovenous malformation. He had experienced epistaxis when he was a junior high school student, and since then, the symptom had frequently recurred.