Hemophagocytic lymphohistiocytosis in a human immunodeficiency virus-positive homosexual high school student

The spread of human immunodeficiency virus (HIV) infection has exploded over the past two decades and such infections in young people are no longer uncommon. However, the major infection route of pediatric patients remains vertical transmission, and sexual, especially homosexual transmission, is highly unusual. We herein describe the case of a 17-year-old boy who developed hemophagocytic lymphohistiocytosis (HLH). Although HLH was remitted soon with dexamethasone therapy, an HIV infection caused by homosexual transmission was detected.     

The Results of Questionnaire about Endoscopic Mucosal Resection in the Stomach

Isolated exfoliation method of gastric endoscopic mucosal resection (EMR) as a new technique has not yet reached the popularity of the conventional EMR techniques. From the results of a questionnaire about EMR in the stomach, the isolated exfoliation method has the advantage of permitting en bloc and histologically complete resection regardless of lesion size. However, this method has the disadvantage of long performance time and high frequency of complication as well as the need for a high level of technical skill. New devices and ideas are needed for the development of the isolated exfoliation method.