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;

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;

Right hepatic artery pseudoaneurysm due to cholecystitis Marina Esgueva Angulo; Arkaitz Perfecto Valero; Mikel Prieto Calvo; Alberto Ventoso Castiñeira; Andrés Valdivieso López;