{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,23]],"date-time":"2026-09-23T17:46:34Z","timestamp":1790185594918,"version":"4.1.0"},"reference-count":16,"publisher":"Ovid Technologies (Wolters Kluwer Health)","issue":"3","license":[{"start":{"date-parts":[[2025,6,9]],"date-time":"2025-06-09T00:00:00Z","timestamp":1749427200000},"content-version":"unspecified","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-sa\/4.0"}],"content-domain":{"domain":["lww.com","ovid.com"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2025,7]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>Intrapancreatic accessory spleen (IPAS) is a rare condition resulting from the failure of embryological splenic buds to fuse. Found in approximately 1.1% to 3.4% of the population, IPAS can present significant diagnostic challenges, often mimicking pancreatic tumours such as pancreatic neuroendocrine tumours. We report two cases of IPAS, each illustrating different diagnostic approaches and outcomes. These cases highlight the importance of considering IPAS in differential diagnoses for hypervascular pancreatic tail lesions. Advanced imaging techniques such as magnetic resonance imaging, computerised tomography, technetium-99m scintigraphy and endoscopic ultrasound-guided fine-needle aspiration are critical in distinguishing IPAS from malignant conditions, potentially preventing unwarranted surgical interventions. Comprehensive diagnostic protocols combining multiple modalities are recommended to enhance diagnostic accuracy and optimise patient outcomes.<\/jats:p>","DOI":"10.4103\/jmas.jmas_245_24","type":"journal-article","created":{"date-parts":[[2025,6,9]],"date-time":"2025-06-09T07:00:45Z","timestamp":1749452445000},"page":"321-325","update-policy":"https:\/\/doi.org\/10.1097\/lww.0000000000001000","source":"Crossref","is-referenced-by-count":2,"title":["Intrapancreatic accessory spleen mimicking a pancreatic neuroendocrine tumour - An important but almost forgotten differential diagnosis"],"prefix":"10.4103","volume":"21","author":[{"given":"Kaique Flavio Xavier Cardoso","family":"Filardi","sequence":"first","affiliation":[{"name":"Department of Hepato-Biliary-Pancreatic Surgery, University of S\u00e3o Paulo, S\u00e3o Paulo, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jos\u00e9 Donizeti de Meira","family":"J\u00fanior","sequence":"additional","affiliation":[{"name":"Department of Hepato-Biliary-Pancreatic Surgery, University of S\u00e3o Paulo, S\u00e3o Paulo, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Thiago Nogueira","family":"Costa","sequence":"additional","affiliation":[{"name":"Department of Hepato-Biliary-Pancreatic Surgery, University of S\u00e3o Paulo, S\u00e3o Paulo, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Andr\u00e9","family":"Montagnini","sequence":"additional","affiliation":[{"name":"Department of Hepato-Biliary-Pancreatic Surgery, University of S\u00e3o Paulo, S\u00e3o Paulo, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ismael","family":"Dominguez-Rosado","sequence":"additional","affiliation":[{"name":"Department of Hepato-Biliary-Pancreatic Surgery, Instituto Nacional de Ciencias Medicas y Nutricion Salvador Zubiran, Mexico City, Mexico"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Carlos","family":"Chan","sequence":"additional","affiliation":[{"name":"Department of Hepato-Biliary-Pancreatic Surgery, Instituto Nacional de Ciencias Medicas y Nutricion Salvador Zubiran, Mexico City, Mexico"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jos\u00e9","family":"Jukemura","sequence":"additional","affiliation":[{"name":"Department of Hepato-Biliary-Pancreatic Surgery, University of S\u00e3o Paulo, S\u00e3o Paulo, Brazil"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Paulo","family":"Herman","sequence":"additional","affiliation":[{"name":"Department of Hepato-Biliary-Pancreatic Surgery, University of S\u00e3o Paulo, S\u00e3o Paulo, 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