by Delthia Ricks , Medical Xpress Axial CT image with i.v. contrast. Macrocystic adenocarcinoma of the pancreatic head. Credit: public domainMedical investigators are theorizing that a combination of two treatments that activate myeloid cells may effectively treat a recalcitrant form of pancreatic cancer that thwarts conventional immunotherapy. Mobilizing the immune system to destroy cancers has...