RT Journal Article T1 Primary Pure Pancreatic -Type Acinar Cell Carcinoma of the Stomach: A Rare Entity with a Difficult Diagnosis and Review of the Literature A1 Paseiro Crespo, Gloria Marta A1 García Nebreda, María A1 Roldán Cortés, David A1 Peña Navarro, Itziar de la A1 Álvaro Cifuentes, Edurne A1 Marqués Medina, Elia A1 Abad Motos, Ane AB Acinar cell carcinoma is an uncommon tumour, representing only 1% to 2% of all exocrine pancreatic tumours. Pancreatic-type acinar cell carcinoma can occur in other organs, including the stomach, but it is extraordinarily rare. We report a case of a 51-year-old woman with a pancreatic-type pure acinar carcinoma of the stomach coexisting with a large cell B lymphoma synchronously, and a literature review of gastric carcinomas with pancreatic cell differentiation. At present there is a preoperative underdiagnosis of these tumours that could be minimized by including this entity in the differential diagnosis of gastric cancer and by performing immunohistochemical analysis with neuroendocrine markers and exocrine pancreatic enzymes. PB SAGE Publications SN 1066-8969 SN 1940-2465 YR 2022 FD 2022-01-24 LK https://hdl.handle.net/20.500.14352/114444 UL https://hdl.handle.net/20.500.14352/114444 LA eng NO Paseiro-Crespo G, García-Nebreda M, Roldán Cortés D, De la Peña Navarro I, Álvaro Cifuentes E, Marqués Medina E, Abad-Motos A. Primary Pure Pancreatic -Type Acinar Cell Carcinoma of the Stomach: A Rare Entity with a Difficult Diagnosis and Review of the Literature. Int J Surg Pathol. 2022 Aug;30(5):528-538. doi: 10.1177/10668969211065763. NO Research article DS Docta Complutense RD 9 abr 2025