PAncreas Borderline and Locally Advanced Snapshot Study

Inclusion Criteria: * Any patient over the age of 18, operated on for pancreatic adenocarcinoma, borderline or locally advanced, between September 2022 and August 2023, in France * Diagnosis of pancreatic adenocarcinoma: * either after cytopuncture with anatomopathological result confirming the diagnosis, * or with strong suspicion on the combined criterias : clinical, biological and morphological criterion (according to INCa 2019 and NCCN recommendations ) in the event of absence of anatomopathological documentation (failure of several fine needle punctures (maximum 3)/or non-contributory anatomopathological examinations), * Borderline or locally advanced character depending on the presence of a contact of the tumor with nearby vessels and defined by morphological examination (scanner +/- MRI). These criteria are defined by the NCCN Guidelines for Pancreatic Adenocarcinoma V.1.2021, international reference Exclusion Criteria: * Patient under juridic protected or subject to any measure of legal protection, * Patients not operated on for their pancreatic adenocarcinoma, * Adenocarcinoma of the pancreas operable immediately on diagnosis, * Metastatic pancreatic adenocarcinoma from the outset on diagnosis, * Patient without pancreatic adenocarcinoma after histological examination (in the case where the pancreatic lesion was operated on for strong suspicion of pancreatic adenocarcinoma on the combined clinical, biological and morphological criterion (according to INCa 2019 and NCCN recommendations, but that the lesion on definitive pathological examination is not a pancreatic adenocarcinoma)