<prompt> Investigation to diagnose carcinoma head of pancrease areis -a Hypotonic duodenogramb X-ray abdomenc USGd Endoscopye C.T. Scanbceacdeabcdabde  <response>: Investigations done in pancreatic cancerUSGCT scanERCPEndoscopic USAngiographyBarium studies - barium meal hypotonic duodenographyContrast enhanced CT scan is the inv. of choice. 