title: [Intraoperative echography in the diagnosis of obstructive jaundice of undetermined cause].
abstract: Intraoperative ultrasonography was performed in a consecutive series of 11 patients with obstructive jaundice. On two occasions, the examination modified the preoperative diagnosis, diagnosing liver metastasis in a patient with hydatid cysts and in another by detecting gallstones in the main biliary duct in which ERCP was suggestive of an ampullary tumor. Ultrasound made a definitive diagnosis of choledocholithiasis in one case, and pancreatic carcinoma in three cases all of which had a preoperative diagnosis of biliary obstruction of undetermined cause. The examination defined accurately the level of obstruction and the extent of a carcinoma of the bile ducts in two patients and it helped in obtaining cytological samples from a pancreatic tumor mass. Its use is recommended when the cause of biliary obstruction cannot be accurately diagnosed preoperatively.
authors.affiliation: Servicio de Cirugía General y de Urgencia, Hospital General La Paz, Madrid.
authors.forename: J A
authors.initials: JA
authors.lastname: González Sánchez
authors.forename: J E
authors.initials: JE
authors.lastname: Miguel Velasco
authors.forename: J F
authors.initials: JF
authors.lastname: Domínguez Sayans
authors.forename: F
authors.initials: F
authors.lastname: López-Ríos Fernández
authors.forename: R
authors.initials: R
authors.lastname: González Conde
authors.forename: S
authors.initials: S
authors.lastname: Casas Pinillos
authors.forename: E
authors.initials: E
authors.lastname: Soleto Sáez
mesh_terms: D001652:Bile Ducts / Q000000981:diagnostic imaging; D002779:Cholestasis / Q000000981:diagnostic imaging* / Q000209:etiology / Q000601:surgery; D003937:Diagnosis, Differential; D006801:Humans; D007430:Intraoperative Care; D014463:Ultrasonography
vernacular_title: Aportación de la ecografía intraoperatoria en el diagnóstico de las ictericias obstructivas de causa no filiada.