{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,8]],"date-time":"2026-05-08T22:11:45Z","timestamp":1778278305851,"version":"3.51.4"},"reference-count":14,"publisher":"Ovid Technologies (Wolters Kluwer Health)","issue":"C","license":[{"start":{"date-parts":[[2025,1,1]],"date-time":"2025-01-01T00:00:00Z","timestamp":1735689600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/tdm\/userlicense\/1.0\/"},{"start":{"date-parts":[[2025,1,1]],"date-time":"2025-01-01T00:00:00Z","timestamp":1735689600000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/legal\/tdmrep-license"},{"start":{"date-parts":[[2025,1,2]],"date-time":"2025-01-02T00:00:00Z","timestamp":1735776000000},"content-version":"vor","delay-in-days":1,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"content-domain":{"domain":["lww.com","ovid.com"],"crossmark-restriction":true},"short-container-title":[],"published-print":{"date-parts":[[2025,1]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Introduction and importance:<\/jats:title>\n                    <jats:p>Appendiceal cancers are rare tumors, with mucinous cystadenocarcinoma accounting for 58 % of malignant appendiceal tumors. Mucinous cystadenocarcinomas are typically low grade but may lead to pseudomyxoma peritonei, causing accumulation of gelatinous material in the abdomen, often referred to as \u02bbjelly belly'. In rare instances, the tumor may perforate into the retroperitoneal cavity leading to the phenomenon described as pseudomyxoma retroperitonei or extraperitonei.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Case presentation:<\/jats:title>\n                    <jats:p>We describe the case of a young man presenting with a psoas abscess, initially treated with antibiotics. When the abscess failed to resolve, further testing was undertaken and revealed a diagnosis of mucinous adenocarcinoma with pseudomyxoma retroperitonei. The patient underwent a right hemicolectomy with debridement of the psoas abscess cavity. This case illustrates the need for a high index of suspicion for malignancy in the setting of recurrent or atypical psoas abscess.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Clinical discussion:<\/jats:title>\n                    <jats:p>Appendiceal mucinous neoplasms are found in &lt;2 % of appendectomy cases. Due to the rarity of the pathology, they are often misdiagnosed as was in this scenario as a psoas abscess. Being in a tuberculosis-endemic area further complicated the diagnosis. Imaging and colonoscopy play a crucial in the proper, early diagnosis of these neoplasms that may present as a psoas abscess.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion:<\/jats:title>\n                    <jats:p>Appendiceal tumors initially presenting as psoas abscess can be misguiding, leading to dismissal of the underlying diagnosis. An appropriate diagnostic workup should be considered early in the disease course for prompt treatment of the condition.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Highlights<\/jats:title>\n                  <\/jats:sec>","DOI":"10.1016\/j.ijscr.2025.110827","type":"journal-article","created":{"date-parts":[[2025,1,5]],"date-time":"2025-01-05T01:41:38Z","timestamp":1736041298000},"update-policy":"https:\/\/doi.org\/10.1097\/lww.0000000000001000","source":"Crossref","is-referenced-by-count":2,"title":["Pseudomyxoma retroperitonei secondary to appendiceal mucinous adenocarcinoma disguised as psoas abscess - A case report"],"prefix":"10.1097","volume":"126","author":[{"given":"Safna Naozer","family":"Virji","sequence":"first","affiliation":[{"name":"Department of Surgery, Aga Khan University Hospital, Stadium Road, Karachi 74800, Pakistan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mehreen","family":"Shahid","sequence":"additional","affiliation":[{"name":"Department of Surgery, Aga Khan University Hospital, Stadium Road, Karachi 74800, Pakistan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Malaika Jawaid","family":"Siddiqui","sequence":"additional","affiliation":[{"name":"Department of Surgery, Aga Khan University Hospital, Stadium Road, Karachi 74800, Pakistan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Syed Faisal","family":"Mahmood","sequence":"additional","affiliation":[{"name":"Department of Infectious Diseases, Aga Khan University Hospital, Stadium Road, Karachi, 74800, Pakistan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Usama","family":"Iqbal","sequence":"additional","affiliation":[{"name":"Department of Surgery, Aga Khan University Hospital, Stadium Road, Karachi 74800, Pakistan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Sadaf","family":"Khan","sequence":"additional","affiliation":[{"name":"Department of Surgery, Aga Khan University Hospital, Stadium Road, Karachi 74800, Pakistan"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"276","reference":[{"issue":"2","key":"R1-164-20260508","doi-asserted-by":"crossref","first-page":"258","DOI":"10.1007\/s13193-016-0516-2","article-title":"Pathology of mucinous Appendiceal tumors and Pseudomyxoma Peritonei","volume":"7","author":"Ramaswamy","year":"2016","journal-title":"Indian J. Surg. Oncol."},{"issue":"1","key":"R2-164-20260508","doi-asserted-by":"crossref","first-page":"86","DOI":"10.1016\/j.suronc.2017.01.006","article-title":"Radical appendectomy as an alternative to right colon resection in patients with epithelial appendiceal neoplasms","volume":"26","author":"Gonz\u00e1lez-Moreno","year":"2017","journal-title":"Surg. Oncol."},{"issue":"4","key":"R5-164-20260508","first-page":"288","article-title":"Bilateral psoas abscess in the emergency department","volume":"10","author":"Tomich","year":"2009","journal-title":"West. J. Emerg. Med."},{"issue":"10","key":"R7-164-20260508","first-page":"413","article-title":"Psoas abscess: report of a series and review of the literature","volume":"63","author":"Van den Berge","year":"2005","journal-title":"Neth. J. Med."},{"issue":"5","key":"R8-164-20260508","doi-asserted-by":"crossref","first-page":"1136","DOI":"10.1097\/JS9.0000000000000373","article-title":"The SCARE 2023 guideline: updating consensus surgical CAse REport (SCARE) guidelines","volume":"109","author":"Sohrabi","year":"2023","journal-title":"Int J Surg Lond Engl."},{"issue":"0","key":"R9-164-20260508","article-title":"Narrative review of appendiceal pseudomyxoma peritonei","volume":"6","author":"Palavalli","year":"2023","journal-title":"Digestive Medicine Research [Internet]"},{"issue":"2","key":"R11-164-20260508","doi-asserted-by":"crossref","first-page":"154","DOI":"10.1016\/j.suronc.2018.02.002","article-title":"Psoas\/iliacus muscle invasion from mucinous appendiceal neoplasm. Radiologic appearance and outcome of treatment in 3 patients","volume":"27","author":"Sugarbaker","year":"2018","journal-title":"Surg. Oncol."},{"issue":"9","key":"R12-164-20260508","first-page":"567","article-title":"Malignant Psoas abscess or Pseudomyxoma extraperitonei","volume":"21","author":"Mehmood","year":"2011","journal-title":"Journal of the College of Physicians and Surgeons Pakistan."},{"issue":"38","key":"R13-164-20260508","doi-asserted-by":"crossref","first-page":"6124","DOI":"10.3748\/wjg.v12.i38.6124","article-title":"Management of pseudomyxoma peritonei","volume":"12","author":"Qu","year":"2006","journal-title":"World J. Gastroenterol."},{"issue":"6","key":"R14-164-20260508","doi-asserted-by":"crossref","DOI":"10.1136\/bcr-2020-240299","article-title":"Pseudomyxoma retroperitonei masquerading as a psoas abscess","volume":"14","author":"Badhe","year":"2021","journal-title":"BMJ Case Rep."},{"issue":"3","key":"R15-164-20260508","doi-asserted-by":"crossref","first-page":"375","DOI":"10.1148\/51.3.375","article-title":"Retroperitoneal mucocele of the appendix; a case report with characteristic roentgen features","volume":"51","author":"Bonann","year":"1948","journal-title":"Radiology"},{"issue":"8","key":"R16-164-20260508","first-page":"1","article-title":"A rare case of psoas abscess secondary to mucinous adenocarcinoma of the appendix: a case report","volume":"11","author":"Prabhu","year":"2021","journal-title":"J Orthop Case Rep."},{"issue":"10","key":"R17-164-20260508","doi-asserted-by":"crossref","first-page":"811","DOI":"10.1016\/S0009-9260(03)00274-5","article-title":"Computed tomography-guided percutaneous catheter drainage of primary and secondary iliopsoas abscesses.","volume":"58","author":"Cantasdemir","year":"2003","journal-title":"Clin. Radiol."},{"issue":"1","key":"R18-164-20260508","doi-asserted-by":"crossref","first-page":"17","DOI":"10.1515\/iss-2022-0013","article-title":"Presentation, management and outcomes of iliopsoas abscess at a university teaching Hospital in Nepal","volume":"8","author":"Sah","year":"2023","journal-title":"Innovative Surgical Sciences."}],"container-title":["International Journal of Surgery Case Reports"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S2210261225000136?httpAccept=text\/xml","content-type":"text\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S2210261225000136?httpAccept=text\/plain","content-type":"text\/plain","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.lww.com\/10.1016\/j.ijscr.2025.110827","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,5,8]],"date-time":"2026-05-08T22:02:08Z","timestamp":1778277728000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.lww.com\/10.1016\/j.ijscr.2025.110827"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2025,1]]},"references-count":14,"journal-issue":{"issue":"C","published-print":{"date-parts":[[2025]]}},"URL":"https:\/\/doi.org\/10.1016\/j.ijscr.2025.110827","relation":{},"ISSN":["2210-2612"],"issn-type":[{"value":"2210-2612","type":"print"}],"subject":[],"published":{"date-parts":[[2025,1]]},"assertion":[{"value":"2024-10-09","name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2025-01-02","name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}}]}}