Intraductal tubulopapillary neoplasm (ITPN) of the pancreas: A new entity different from intraductal mucinous neoplasm of the pancreas Jon Ignacio Uriarte Terán; Mikel Prieto Calvo; Eva García Alberd; Arkaitz Perfecto Valero; Andrés Valdivieso López;

Hydatid cyst with gastric fistula Sara Ortiz de Guzmán Aragón; Arkaitz Perfecto Valero; Alberto Ventoso Castiñeira; Andrés Valdivieso López;

Parietal Recurrence of Hilar Cholangiocarcinoma: Is Percutaneous Transhepatic Biliary Drainage the Best Choice in Patients With Hiliar Cholangiocarcinoma? Clara Serrano Hermosilla; Mikel Prieto Calvo; Mikel Gastaca Mateo; Arkaitz Perfecto Valero; Andrés Valdivieso López;