{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,19]],"date-time":"2026-09-19T04:27:12Z","timestamp":1789792032371,"version":"4.0.1"},"reference-count":18,"publisher":"BMJ","issue":"3","content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["BMJ Case Rep"],"accepted":{"date-parts":[[2022,1,25]]},"published-print":{"date-parts":[[2022,3]]},"abstract":"<jats:p>Duodenal gastrointestinal stromal tumours (D-GISTs) are a rare disease. It may arise commonly from the second or third part of the duodenum and can be erroneously diagnosed as a pancreatic head tumour due to proximity and morphology on imaging studies. We present a case of a 60-year-old woman who presented with abdominal pain and was diagnosed as a case of pancreatic neuroendocrine tumour on radiologic imaging and granulomatous lesion on aspiration cytology. A ~5\u00d73 cm mass was noted in the pancreatic head on laparotomy, and pancreatoduodenectomy was performed. Histopathology reported an exophytic GIST arising from the second part of the duodenum. Hence, D-GIST can invade the pancreas and mimic pancreatic head tumours; therefore, these tumours should be kept in the differential diagnosis of an atypical pancreatic head mass.<\/jats:p>","DOI":"10.1136\/bcr-2022-248828","type":"journal-article","created":{"date-parts":[[2022,3,1]],"date-time":"2022-03-01T12:32:20Z","timestamp":1646137940000},"page":"e248828","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":4,"title":["Duodenal gastrointestinal stromal tumour imitating as pancreatic head tumour"],"prefix":"10.1136","volume":"15","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-1771-2787","authenticated-orcid":false,"given":"Vaibhav Kumar","family":"Varshney","sequence":"first","affiliation":[{"name":"Surgical Gastroenterology, All India Institute of Medical Sciences, Jodhpur, Rajasthan, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1092-6515","authenticated-orcid":false,"given":"Raghav","family":"Nayar","sequence":"additional","affiliation":[{"name":"Surgical Gastroenterology, All India Institute of Medical Sciences, Jodhpur, Rajasthan, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Taruna","family":"Yadav","sequence":"additional","affiliation":[{"name":"Diagnostic and Interventional Radiology, All India Institute of Medical Sciences, Jodhpur, Rajasthan, India"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sudeep","family":"Khera","sequence":"additional","affiliation":[{"name":"Pathology, All India Institute of Medical Sciences, Jodhpur, Rajasthan, India"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"239","published-online":{"date-parts":[[2022,3,1]]},"reference":[{"key":"2025082803035821000_15.3.e248828.1","doi-asserted-by":"publisher","DOI":"10.1097\/00000478-200305000-00006"},{"key":"2025082803035821000_15.3.e248828.2","doi-asserted-by":"crossref","first-page":"907","DOI":"10.1002\/jso.21871","article-title":"Imaging modalities of gastrointestinal stromal tumors","volume":"104","author":"Choi","year":"2011","journal-title":"J Surg Oncol"},{"key":"2025082803035821000_15.3.e248828.3","doi-asserted-by":"publisher","DOI":"10.1053\/j.semdp.2006.09.001"},{"key":"2025082803035821000_15.3.e248828.4","doi-asserted-by":"crossref","DOI":"10.1186\/s12885-018-4485-4","article-title":"Clinicopathological features, surgical strategy and prognosis of duodenal gastrointestinal stromal tumors: a series of 300 patients","volume":"18","author":"Liu","year":"2018","journal-title":"BMC Cancer"},{"key":"2025082803035821000_15.3.e248828.5","doi-asserted-by":"crossref","first-page":"358","DOI":"10.1016\/j.ijscr.2018.11.011","article-title":"Duodenal gastrointestinal stromal tumors appear similar to pancreatic neuroendocrine tumors: a case report","volume":"53","author":"Futo","year":"2018","journal-title":"Int J Surg Case Rep"},{"key":"2025082803035821000_15.3.e248828.6","doi-asserted-by":"crossref","first-page":"271","DOI":"10.4236\/ym.2019.34026","article-title":"Case report of duodenal gastrointestinal stromal tumor masquerading a pancreatic head tumor","volume":"03","author":"Dhakal","year":"2019","journal-title":"YM"},{"key":"2025082803035821000_15.3.e248828.7","first-page":"255","article-title":"Duodenal gastrointestinal stromal tumor presenting as pancreatic head mass - 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