Eosinophilic cholangitis without peripheral eosinophilia presenting as a localized bile duct stricture mimicking perihilar cholangiocarcinoma. - Mori T; Ishii Y; Nakamura S; Ikemoto J; Furukawa M; Yamashita Y; Arihiro K; Uemura K; Takahashi S; Oka S (Clinical journal of gastroenterology, 2026)