Department of Gastroenterology;
University Hospital of Saint Etienne;
Department of General Surgery;
University Hospital of Saint Etienne;
Department of Radiology;
University Hospital of Saint Etienne;
Department of Hematology and Oncology;
Cancérologie Lucien Neuwirth;
Department of Cytology;
University Hospital of Saint Etienne;
Plasmacytoma; Pancreas; Diagnosis; Ultrasound; endoscopy; Review;