Protocolo diagnóstico de la colestasis extrahepática

The case history and physical examination can help enormously in directing the diagnosis. Abdominal ultrasonography should be the first examination performed. For cases in which the results of this examination are undetermined or normal but clinical suspicion is high, the study should be completed with other imaging methods. Echoendoscopy and cholangioresonance are two comparable examinations with high diagnostic yields in this scenario. Endoscopic retrograde cholangiopancreatography and transparietal hepatic cholangiography are invasive examinations that offer diagnostic and therapeutic possibilities in patients with bile duct obstruction.