If you have new or worsening jaundice, fever, severe abdominal pain, fainting, or confusion, seek urgent emergency care. Imaging that reports a mass with vascular encasement, suprapancreatic bile duct obstruction, pancreatic infiltration, and nearby lymph node enlargement is potentially serious and requires prompt specialist evaluation. Next steps usually include review of the imaging and labs by specialists (gastroenterology/hepatology, surgical oncology, radiology and interventional radiology), further diagnostic imaging or tissue sampling to determine the cause, and discussion of options for managing the bile duct obstruction if it is causing symptoms. Bring prior scans and recent blood tests to your appointments and ask about referral to a multidisciplinary team for coordinated evaluation and staging. This page explains warning signs, likely diagnostic steps, and which specialties to consult; it does not provide a diagnosis or treatment plan.