<prompt> Not a contraindication for resection of head of pancreas:Liver metastasisAscitesPeritoneal seedingsInvolvement of major artery 180 degree  <response>: Ans. d Involvement of major artery 180 degreeRef: Sabiston Page 1546 20th editionOn CT scan the tumors are divided into resectable, Borderline resectable and Unresectable tumors:Unresectable tumors: Arterial involvement more than 180 degrees Ascites Peritoneal mets Lymph node mets outside the operation areas Liver mets. 