Abstract: The invention is generally applicable in the field of biomedical engineering, and specifically relates to a method for diagnosis and/or prognosis of neoplasias in animals. The invention further relates to a diagnostic/prognostic kit associated to such method, a reagent for the preparation of such kit and the use of particular biomarkers in such method and/or kit. The method comprises at leas the steps of: drawing at least one sample from the patient and determining the amount of a biomarker in said at least one sample drawn from the patient. The biomarker is a protein released by pancreatic cells.