How is dx of pancreatic cancer?

CA 19-9 (Elevated in 75% , False +ve in Obstructive Jaundice , Benign HBP disease 10%, Fail for using as early detective screenning test, Using for F/U : progression & Recurrence Dz) Pt with Jaundice US If +ve Dilatation with Stone  ERCP if +ve Dilatation without stone  CT Pt with Jaundice with suspected of CA Pancreas or CT scan for 1st step