Efficacy and safety of vonoprazan-based regimen for Helicobacter pylori eradication therapy in Japanese adolescents: a prospective multicenter study.

Background: Vonoprazan (VPZ)-based regimen for Helicobacter pylori (H. pylori) is safe and more efficacious than the proton pump inhibitor-based regimen mainly in adults. This study aimed to evaluate the efficacy and safety of a VPZ-based regimen for H.

Gastrointestinal adverse reactions reduce the success rate of Helicobacter pylori eradication therapy: A multicenter prospective cohort study.

Background: The screening and treatment of Helicobacter pylori infection for all junior high students in Saga Prefecture, Japan, were started in 2016. The present study aims to evaluate the influence of adverse reactions on the success of the eradication therapy.

Methods: From 2017 to 2019, 25,006 third-grade junior high school students were tested for urinary anti-H.

Hepatocellular carcinoma with an unusual neuroendocrine component.

We report a rare case of hepatocellular carcinoma (HCC) with an unusual neuroendocrine component. During a follow-up study for chronic hepatitis C in a 71-year-old man, a nodular lesion showed rapid growth from 1 cm to 4 cm in diameter within 3 months. Histologically, the tumor was consistent with moderately differentiated HCC, but was intermingled with nests of small round cells with scarce cytoplasm, which resembled those found in small cell carcinoma.