Читать книгу Pathy's Principles and Practice of Geriatric Medicine - Группа авторов - Страница 548

Following an initial assessment with blood work, tumour marker CA19‐9, CT scan, and ultrasonography are typically the first imaging steps. Ultrasound may reveal biliary dilation in the setting of a pancreatic head cancer but is otherwise insensitive to the presence of a pancreatic mass in many cases. CT scan is a much more accurate imaging modality and also has the benefit of providing vascular staging information.

CT scanning may also help identify tumour expansion outside the confines of the gland, such as a metastatic tumour in the liver or adjacent lymph nodes (Figure 21.3). Diagnosis is now most commonly confirmed by endoscopic ultrasound with fine‐needle biopsy. ERCP may also be indicated for biliary stent placement in the setting of obstructive jaundice.