title: A case of primary pancreatic non-Hodgkin B-cell lymphoma mimicking autoimmune pancreatitis.
abstract: Non Hodgkin lymphoma frequently involves the gastrointestinal tract, in particular the stomach and the small bowel. Rarely, it can also be a cause of pancreatic masses. Clinical presentation is often non-specific and may overlap with other pancreatic conditions such as carcinoma, neuroendocrine tumours and autoimmune pancreatitis. We report a case of primary pancreatic lymphoma in a young woman with jaundice, fever and abdominal pain mimicking autoimmune pancreatitis. Clinical evaluation included the abdominal Computed Tomography scan, Magnetic Resonance Imaging and an upper gastrointestinal endoscopy that revealed a large duodenal mass. Endoscopic biopsies were performed and eventually histological examination was coherent with a diagnosis of primary pancreatic lymphoma.
authors.affiliation: Department of Gastroenterology, Endoscopy Unit, IRCCS Istituto Clinico Humanitas, Milan, Italy. andrea.anderloni@humanitas.it.
authors.forename: Andrea
authors.initials: A
authors.lastname: Anderloni
authors.affiliation: Division of Endoscopy, Istituto Europeo Oncologico, Milan, Italy.
authors.forename: Chiara
authors.initials: C
authors.lastname: Genco
authors.affiliation: Gastrointestinal and Digestive Endoscopy Unit, AOU Maggiore della Carità, Novara, Italy.
authors.forename: Marco
authors.initials: M
authors.lastname: Ballarè
authors.affiliation: Gastrointestinal and Digestive Endoscopy Unit, AOU Luigi Sacco, Milan, Italy.
authors.forename: Stefania
authors.initials: S
authors.lastname: Carmagnola
authors.affiliation: Department of Pathology, IRCCS Istituto Clinico Humanitas, Milan, Italy.
authors.forename: Serena
authors.initials: S
authors.lastname: Battista
authors.affiliation: Department of Gastroenterology, Endoscopy Unit, IRCCS Istituto Clinico Humanitas, Milan, Italy.
authors.forename: Alessandro
authors.initials: A
authors.lastname: Repici
mesh_terms: D015746:Abdominal Pain / Q000175:diagnosis / Q000209:etiology; D000328:Adult; D018951:Antigens, CD20 / Q000032:analysis; D000970:Antineoplastic Agents / Q000627:therapeutic use; D001327:Autoimmune Diseases / Q000175:diagnosis*; D014408:Biomarkers, Tumor / Q000032:analysis; D001706:Biopsy; D003937:Diagnosis, Differential; D003951:Diagnostic Errors; D003952:Diagnostic Imaging / Q000379:methods; D016145:Endoscopy, Digestive System; D005260:Female; D005334:Fever / Q000175:diagnosis / Q000209:etiology; D006801:Humans; D007150:Immunohistochemistry; D007565:Jaundice / Q000175:diagnosis / Q000209:etiology; D016393:Lymphoma, B-Cell / Q000150:complications / Q000175:diagnosis* / Q000188:drug therapy / Q000276:immunology; D008279:Magnetic Resonance Imaging; D010190:Pancreatic Neoplasms / Q000150:complications / Q000175:diagnosis* / Q000188:drug therapy / Q000276:immunology; D010195:Pancreatitis / Q000175:diagnosis*; D011237:Predictive Value of Tests; D014057:Tomography, X-Ray Computed
chemical_list: D018951:Antigens, CD20; D000970:Antineoplastic Agents; D014408:Biomarkers, Tumor