This is a prospective observational study aiming to investigate the microbiome in patients suspected of having pancreatic cancer. The purpose is to enhance diagnostic accuracy by developing screening protocols for high-risk individuals, identifying specific microbial biomarkers, and improving prognostic criteria to optimize treatment response. Participants will be asked to complete a questionnaire, provide oral and fecal swabs, and-if clinically indicated-1-2 pancreatic biopsies will be collected.