[Hematemesis due to rupture of splenic artery pseudoaneurysm in association with segmental arterial mediolysis:a case report].

A gastric ulcer was detected in a 54-year-old man who underwent upper gastrointestinal endoscopy for hematemesis. An abdominal contrasted computed tomography scan detected a splenic artery aneurysm adjacent to the gastric wall. Endoscopic hemostasis was thought to be risky owing to possible rupture of the aneurysm.

[Intraductal papillary neoplasm of bile duct developed in a patient with IgG4-related sclerosing cholangitis, autoimmune pancreatitis, and myasthenia gravis].

In the course of treatment for myasthenia gravis, enlargement of a cystic mass in the liver with peripheral bile duct dilation, diffuse pancreatic enlargement, and serum IgG4 level elevation was identified in a 65-year-old man. Following the diagnosis of autoimmune pancreatitis, a left hepatectomy was performed because of suspected malignancy of the cystic lesion. Analysis of the resected specimen revealed the cystic lesion to be a dilated bile duct.

[Successful resection of a gastric aberrant pancreas causing gastrointestinal bleeding by laparoscopy and endoscopy cooperative surgery].

A man in his 50s was admitted to our hospital for treatment of hematemesis. Endoscopy revealed arterial bleeding from a gastric submucosal tumor and endoscopic hemostasis was successful. However, surgical resection was contemplated to prevent recurrent bleeding and for making a definitive diagnosis.

Micelle structures in aqueous solutions of glucose-based surfactants having an isoprenoid-type hydrophobic chain.

Surfactant self-diffusion coefficients have been measured on a binary system of 1-O-beta-3,7-dimethyloctyl-D-maltopyranoside (beta-Mal(2)(Ger))/water and a mixed surfactant system of beta-Mal(2)(Ger)/1-O-beta-3,7-dimethyloctyl-D-glucopyranoside (beta-Glc(Ger))/water at 25 degrees C. For comparison, measurements have also been made on 1-O-beta-decyl-D-maltopyranoside (beta-Mal(2)C(10))/water and beta-Mal(2)C(10)/1-O-beta-decyl-D-glucopyranoside (beta-GlcC(10))/water. The hydrodynamic radius of beta-Mal(2)(Ger) micelles obtained from the micellar diffusion coefficient is around 3 nm and nearly equal to that of beta-GlcC(10) micelles within experimental error.

Pedunculated early carcinoma of supra-ampullary duodenum presenting as acute pancreatitis.

Background. A 43-yr-old man was admitted to our hospital after sudden onset of epigastric pain. He was diagnosed with acute pancreatitis by clinical, laboratory, and radiographic signs.

Stimulatory effects of bilirubin on amylase release from isolated rat pancreatic acini.

Considered to be an etiologic factor of acute pancreatitis, hypersecretion of pancreatic juice and digestive enzymes is often associated with hyperbilirubinemia. We explored the intracellular mechanisms through which bilirubin affects pancreatic exocrine secretory function by examining the effect of bilirubin on isolated rat pancreatic acini. Bilirubin stimulated amylase release in a concentration- and time-dependent manner, significantly increasing amylase release at concentrations >5 mg/100 ml and after 15 min of incubation.