{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,25]],"date-time":"2026-06-25T10:50:50Z","timestamp":1782384650236,"version":"3.54.5"},"reference-count":15,"publisher":"Oxford University Press (OUP)","issue":"6","license":[{"start":{"date-parts":[[2026,6,25]],"date-time":"2026-06-25T00:00:00Z","timestamp":1782345600000},"content-version":"vor","delay-in-days":25,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2026,5,31]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>Groove pancreatitis (GP) is a rare focal form of chronic pancreatitis that frequently mimics pancreatic head or duodenal malignancy, often leading to unnecessary pancreaticoduodenectomy. We report the case of a 47-year-old man with heavy alcohol use who presented with severe gastric outlet obstruction (GOO) due to a mass-like duodenal lesion. Clinical, endoscopic, and radiologic features initially suggested primary duodenal malignancy. However, characteristic imaging, negative biopsies, and multidisciplinary review confirmed segmental GP. The patient achieved complete resolution of GOO and the duodenal lesion within 7 days using conservative management alone (alcohol cessation, nasogastric decompression, proton-pump inhibitors, pancreatic enzymes, and nutritional support). This unusually rapid and morbidity-free response highlights that, when malignancy is reliably excluded, pragmatic conservative therapy can safely prevent major pancreatic resection and its associated costs. Greater awareness of GP and early multimodal assessment can reduce overtreatment in ambiguous pancreaticoduodenal masses.<\/jats:p>","DOI":"10.1093\/jscr\/rjag420","type":"journal-article","created":{"date-parts":[[2026,5,17]],"date-time":"2026-05-17T11:31:00Z","timestamp":1779017460000},"source":"Crossref","is-referenced-by-count":0,"title":["Groove pancreatitis mimicking duodenal malignancy with gastric outlet obstruction: successful conservative management to avoid unnecessary pancreaticoduodenectomy"],"prefix":"10.1093","volume":"2026","author":[{"given":"Tushar","family":"Saini","sequence":"first","affiliation":[{"name":"Department of General Surgery (GI Surgery Unit), Rohilkhand Medical College and Hospital , Pilibhit Bypass Road (Pawan Vihar \/ Mahanagar area), Bareilly District, Bareilly 243006, Uttar Pradesh ,","place":["India"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0007-3693-3362","authenticated-orcid":false,"given":"Kumar","family":"Kaushik","sequence":"additional","affiliation":[{"name":"Department of General Surgery, Rohilkhand Medical College and Hospital , Pilibhit Bypass Road (Pawan Vihar \/ Mahanagar area), Bareilly District, Bareilly 243006, Uttar Pradesh ,","place":["India"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Isha","family":"Shah","sequence":"additional","affiliation":[{"name":"Department of General Surgery, Rohilkhand Medical College and Hospital , Pilibhit Bypass Road (Pawan Vihar \/ Mahanagar area), Bareilly District, Bareilly 243006, Uttar Pradesh ,","place":["India"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"286","published-online":{"date-parts":[[2026,6,3]]},"reference":[{"key":"2026062506243565800_ref1","doi-asserted-by":"publisher","first-page":"247","DOI":"10.1053\/j.semdp.2005.07.005","article-title":"Paraduodenal pancreatitis: a clinico-pathologically distinct entity unifying cystic dystrophy of heterotopic pancreas, para-duodenal wall cyst, and groove pancreatitis","volume":"21","author":"Adsay","year":"2004","journal-title":"Semin Diagn Pathol"},{"key":"2026062506243565800_ref2","doi-asserted-by":"publisher","first-page":"252","DOI":"10.1007\/978-3-642-65409-1_12","volume-title":"Spezielle pathologische Anatomie","author":"Becker V","year":"1973"},{"key":"2026062506243565800_ref3","first-page":"198","article-title":"A special form of segmental pancreatitis: \u2018groove pancreatitis\u2019","volume":"29","author":"Stolte","year":"1982","journal-title":"Hepatogastroenterology"},{"key":"2026062506243565800_ref4","doi-asserted-by":"publisher","first-page":"771","DOI":"10.5152\/tjg.2023.22875","article-title":"Clinical, radiological, and endoscopic ultrasound findings in groove pancreatitis: a multicenter retrospective study","volume":"34","author":"Okasha","year":"2023","journal-title":"Turk J Gastroenterol"},{"key":"2026062506243565800_ref5","doi-asserted-by":"publisher","first-page":"1627","DOI":"10.3390\/jcm14051627","article-title":"Groove pancreatitis in focus: tumor-mimicking phenotype, diagnosis, and management insights","volume":"14","author":"Balaban","year":"2025","journal-title":"J Clin Med"},{"key":"2026062506243565800_ref6","doi-asserted-by":"publisher","first-page":"1337","DOI":"10.1016\/j.ejrad.2014.05.019","article-title":"Dual-phase CT findings of groove pancreatitis","volume":"83","author":"Zaheer","year":"2014","journal-title":"Eur J Radiol"},{"key":"2026062506243565800_ref7","doi-asserted-by":"publisher","first-page":"2260","DOI":"10.1111\/jgh.16683","article-title":"Groove pancreatitis: from enigma to future directions\u2014a comprehensive review","volume":"39","author":"Dahiya","year":"2024","journal-title":"J Gastroenterol Hepatol"},{"key":"2026062506243565800_ref8","doi-asserted-by":"publisher","first-page":"2167","DOI":"10.1111\/ans.17939","article-title":"Could it be groove pancreatitis? A frequently misdiagnosed condition with a surgical solution","volume":"92","author":"Teo","year":"2022","journal-title":"ANZ J Surg"},{"key":"2026062506243565800_ref9","doi-asserted-by":"publisher","DOI":"10.1093\/bjsopen\/zrad094","article-title":"Systematic review on groove pancreatitis: management of a rare disease","volume":"7","author":"Ukegjini","year":"2023","journal-title":"BJS Open"},{"key":"2026062506243565800_ref10","doi-asserted-by":"publisher","first-page":"749","DOI":"10.1097\/MCG.0000000000000746","article-title":"Outcomes after conservative, endoscopic, and surgical treatment of groove pancreatitis: a systematic review","volume":"51","author":"Kager","year":"2017","journal-title":"J Clin Gastroenterol"},{"key":"2026062506243565800_ref11","doi-asserted-by":"publisher","first-page":"293","DOI":"10.14701\/ahbps.25-041","article-title":"Long-term outcomes of pancreato-duodenectomy for groove pancreatitis: a retrospective experience from a tertiary referral center","volume":"29","author":"Ahmed","year":"2025","journal-title":"Ann Hepatobiliary Pancreat Surg"},{"key":"2026062506243565800_ref12","doi-asserted-by":"publisher","first-page":"101","DOI":"10.1007\/s00535-006-1945-4","article-title":"The M-ANNHEIM classification of chronic pancreatitis: introduction of a unifying classification system based on a review of previous classifications of the disease","volume":"42","author":"Schneider","year":"2007","journal-title":"J Gastroenterol"},{"key":"2026062506243565800_ref13","doi-asserted-by":"publisher","first-page":"14","DOI":"10.1016\/j.ijscr.2017.07.043","article-title":"Paraduodenal pancreatitis as an uncommon cause of gastric outlet obstruction: a case report and review of the literature","volume":"39","author":"Larjani","year":"2017","journal-title":"Int J Surg Case Rep"},{"key":"2026062506243565800_ref14","doi-asserted-by":"publisher","DOI":"10.1016\/j.ijscr.2023.108995","article-title":"Conservative management of groove pancreatitis\u2014a case report with literature review","volume":"112","author":"Gobishangar","year":"2023","journal-title":"Int J Surg Case Rep"},{"key":"2026062506243565800_ref15","doi-asserted-by":"publisher","first-page":"626","DOI":"10.3390\/medicina60040626","article-title":"Pancreaticoduodenectomy with anatomical vascular variant in groove pancreatitis\u2014a case report","volume":"60","author":"Breaza","year":"2024","journal-title":"Medicina (Kaunas)"}],"container-title":["Journal of Surgical Case Reports"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/academic.oup.com\/jscr\/article-pdf\/2026\/6\/rjag420\/68610301\/rjag420.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"syndication"},{"URL":"https:\/\/academic.oup.com\/jscr\/article-pdf\/2026\/6\/rjag420\/68610301\/rjag420.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,6,25]],"date-time":"2026-06-25T10:24:55Z","timestamp":1782383095000},"score":1,"resource":{"primary":{"URL":"https:\/\/academic.oup.com\/jscr\/article\/doi\/10.1093\/jscr\/rjag420\/8700314"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,5,31]]},"references-count":15,"journal-issue":{"issue":"6","published-print":{"date-parts":[[2026,5,31]]}},"URL":"https:\/\/doi.org\/10.1093\/jscr\/rjag420","relation":{},"ISSN":["2042-8812"],"issn-type":[{"value":"2042-8812","type":"electronic"}],"subject":[],"published-other":{"date-parts":[[2026,6]]},"published":{"date-parts":[[2026,5,31]]},"article-number":"rjag420"}}