Radical trifluoromethoxylation of fluorinated alkenes for accessing difluoro(trifluoromethoxy)methyl groups.

In this study, we explore the potential of the difluoro(trifluoromethoxy)methyl group, CF-O-CF, an underexplored but promising structural analog of the trifluoromethoxy group (OCF). This moiety offers unique electronic properties and enhanced chemical stability due to its multiple C-F bonds, along with the added advantage of C-O bond cleavage, making it an attractive option in fluorine chemistry. We have succeeded in synthesizing difluoro(trifluoromethoxy)methyl compounds radical amino- and hydroxy-trifluoromethoxylations of β,β-difluorostyrenes.

A case of sclerosing angiomatoid nodular transformation with central calcification.

Sclerosing angiomatoid nodular transformation (SANT) is a rare benign vascular disease and mostly discovered incidentally in asymptomatic patients. Since SANT grows over time and it is often difficult to rule out malignancy on imaging, splenectomy is frequently the treatment of choice. Image findings of SANT have been reported as low signal intensity on T2-weighted magnetic resonance (MR) images and a characteristic enhancement pattern on dynamic contrast-enhanced computed tomography (CT) and MR images.

A Case of Robot-Assisted Pylorus-Preserving Pancreatoduodenectomy for Branch-Duct Intraductal Papillary Mucinous Neoplasms Complicated With an Annular Pancreas.

Annular pancreas is a rare congenital anatomical anomaly, in which the pancreatic parenchyma surrounds the descending duodenum. Generally, annular pancreas is diagnosed on the basis of symptoms associated with complications of peptic ulcer, pancreatitis, cholelithiasis, and rarely, malignant tumors. Herein, we report an 84-year-old man for whom, during hospitalization for a urinary tract infection, pancreatic cystic lesions and an annular pancreas were noted incidentally on computed tomography.

A lymph node lesion of hyper IL-6 syndrome mimicking plasmacytoma, IgG4-related disease, and Castleman disease.

A 72-year-old male patient presented fatigue, anemia, elevated total protein, IgG, IgG4, IL-6, and vascular endothelial growth factor (VEGF) levels. Initial diagnostics suspected multiple myeloma. A plane computed tomography (CT) scan showed pneumonia and the enlargement of generalized lymph nodes.