TY - CHAP M1 - Book, Section TI - Tumors of the Pancreas A1 - McNabb-Baltar, Julia A1 - Swanson, Richard A2 - Greenberger, Norton J. A2 - Blumberg, Richard S. A2 - Burakoff, Robert PY - 2016 T2 - CURRENT Diagnosis & Treatment: Gastroenterology, Hepatology, & Endoscopy, 3e AB - ESSENTIALS OF DIAGNOSISAbdominal protocol computed tomography (CT) with arterial and venous phases is generally the best initial modality for diagnosis and staging.Endoscopic ultrasound (EUS) is superior to CT in diagnosing small tumors, and can be used to obtain pathologic confirmation of the diagnosis.Fewer than 20% of tumors are resectable at the time of diagnosis.Carbohydrate antigen 19-9 (CA 19-9) and carcinoembryonic antigen (CEA) have a low specificity and sensitivity, but can be followed for treatment response if initially elevated. SN - PB - McGraw-Hill Education CY - New York, NY Y2 - 2024/03/29 UR - accessmedicine.mhmedical.com/content.aspx?aid=1119988782 ER -