Taken as a whole, 13/18 patients with PDAC (72.2%) were positive to SAB L194, anti-PAVIRF and to anti-PRAAHG antibodies meaning that the truncated isoform of BSDL (BSDL-ApInsC), along with the normal form of the enzyme, is expressed in these tissues or at least by some cells within the tumor mass. The gene discussed is CEL; the disease is neoplasm.