[Endoscopy for the diagnosis of mast cell leukemia with refractory diarrhea: a case report].

Already a rare presentation in patients with systemic mastocytosis (SM), chronic diarrhea is even rarer in those with mast cell leukemia (MCL), a subtype of SM. We present a case to illustrate the utility of lower gastrointestinal endoscopy with histological examination in the diagnosis of MCL in a patient with chronic diarrhea. A woman in her 70s presented with persistent diarrhea.

An Unusual Abscess Associated with Gallbladder Perforation Successfully Treated with Percutaneous Transhepatic Gallbladder Drainage and Endoscopic Ultrasound-guided Abscess Drainage.

Abscesses associated with gallbladder perforation are often confined to the peri-gallbladder region. We herein report a rare case of gallbladder perforation in which the abscess cavity extended into the left upper quadrant. A 79-year-old woman developed gallbladder perforation secondary to acalculous cholecystitis.

IgG4-related hepatic inflammatory pseudotumor in a patient with serum IgG4-negative type 1 autoimmune pancreatitis.

IgG4-related disease (IgG4-RD) can cause heterogeneous lesion in various organs. Serum IgG4 levels are useful in monitoring patients with IgG4-RD; however, when it is negative, more careful observation is required. A 58-year-old woman who had been diagnosed with serum IgG4-negative type 1 autoimmune pancreatitis (AIP) 3 years prior visited our hospital for the evaluation of a liver tumor.

A Case of Successful Endoscopic Extraction of Common Bile Duct Stones After Closing a Duodenal Perforation Using Over-The-Scope Clip.

A 57-year-old man visited our hospital for acute cholangitis due to common bile duct (CBD) stones in March 2021. Biliary stenting was performed without any complications. The cholangitis improved rapidly.

(+)-Sesamin-oxidising CYP92B14 shapes specialised lignan metabolism in sesame.

Sesamum spp. (sesame) are known to accumulate a variety of lignans in a lineage-specific manner. In cultivated sesame (Sesamum indicum), (+)-sesamin, (+)-sesamolin and (+)-sesaminol triglucoside are the three major lignans found richly in the seeds.