{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,11]],"date-time":"2026-05-11T11:29:41Z","timestamp":1778498981617,"version":"3.51.4"},"reference-count":29,"publisher":"FapUNIFESP (SciELO)","issue":"6","license":[{"start":{"date-parts":[[2019,12,1]],"date-time":"2019-12-01T00:00:00Z","timestamp":1575158400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2019,12,1]],"date-time":"2019-12-01T00:00:00Z","timestamp":1575158400000},"content-version":"am","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"},{"start":{"date-parts":[[2019,12,1]],"date-time":"2019-12-01T00:00:00Z","timestamp":1575158400000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Radiol Bras"],"abstract":"<jats:p>Abstract  Objective: To determine the most common imaging features of pseudomyxoma peritonei (PMP), as well as the histologic subtypes of the primary tumors.  Materials and Methods: We reviewed 30 cases of women with pathologically confirmed PMP. Only computed tomography scans were available. All cases were retrospectively studied by four radiologists, working independently. We identified the most common imaging findings, the predominant primary site of the disease, and the growth pattern. The most common sites of recurrence were also analyzed.  Results: The most common computed tomography finding was peritoneal\/omental nodules (including \u201comental caking\u201d), followed by visceral scalloping and non-mucinous ascites. The most common site of the primary tumor was the appendix (in 63.3%), followed by the ovaries (in 16.6%), and 16.6% of the tumors were of undetermined origin. There was one case of synchronous appendiceal and ovarian tumors. Low-grade mucinous neoplasm was the most common histologic subtype, accounting for 84.2% of the appendiceal tumors and 40% of the ovarian tumors.  Conclusion: Although PMP is a relatively rare entity, radiologists must be aware of its possible imaging findings, common locations, and possible patterns of recurrence. The origin of the primary tumor should also be investigated. Future studies are needed in order to determine which preoperative imaging findings predict surgical outcomes and to characterize the main findings of radiological recurrence.<\/jats:p>","DOI":"10.1590\/0100-3984.2019.0044","type":"journal-article","created":{"date-parts":[[2019,8,31]],"date-time":"2019-08-31T19:25:13Z","timestamp":1567279513000},"page":"372-377","source":"Crossref","is-referenced-by-count":22,"title":["The many faces of pseudomyxoma peritonei: a radiological review based on 30 cases"],"prefix":"10.1590","volume":"52","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-1200-3618","authenticated-orcid":false,"given":"C\u00e1ssia","family":"Fonseca","sequence":"first","affiliation":[{"name":"Instituto Portugu\u00eas de Oncologia de Lisboa Francisco Gentil,  Portugal"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-6940-4087","authenticated-orcid":false,"given":"Saulo","family":"Carvalho","sequence":"additional","affiliation":[{"name":"Instituto Portugu\u00eas de Oncologia de Lisboa Francisco Gentil,  Portugal"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2411-0207","authenticated-orcid":false,"given":"Teresa Margarida","family":"Cunha","sequence":"additional","affiliation":[{"name":"Instituto Portugu\u00eas de Oncologia de Lisboa Francisco Gentil,  Portugal"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-1462-5119","authenticated-orcid":false,"given":"Rui Tiago","family":"Gil","sequence":"additional","affiliation":[{"name":"Instituto Portugu\u00eas de Oncologia de Lisboa Francisco Gentil,  Portugal"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-2156-314X","authenticated-orcid":false,"given":"Nuno","family":"Abecasis","sequence":"additional","affiliation":[{"name":"Instituto Portugu\u00eas de Oncologia de Lisboa Francisco Gentil,  Portugal"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"530","published-online":{"date-parts":[[2019,12]]},"reference":[{"key":"ref1","doi-asserted-by":"crossref","first-page":"861","DOI":"10.1016\/j.diii.2014.02.009","article-title":"CT imaging of peritoneal carcinomatosis and its mimics","volume":"95","author":"Diop AD","year":"2014","journal-title":"Diagn Interv Imaging"},{"key":"ref2","doi-asserted-by":"crossref","first-page":"682","DOI":"10.1016\/S0748-7983(03)00149-5","article-title":"Pseudomyxoma peritonei: a review of 62 cases","volume":"29","author":"van Ruth S","year":"2003","journal-title":"Eur J Surg Oncol"},{"key":"ref3","doi-asserted-by":"crossref","first-page":"14","DOI":"10.1097\/PAS.0000000000000535","article-title":"A consensus for classification and pathologic reporting of pseudomyxoma peritonei and associated appendiceal neoplasia: the results of the Peritoneal Surface Oncology Group International (PSOGI) modified Delphi process","volume":"40","author":"Carr NJ","year":"2016","journal-title":"Am J Surg Pathol"},{"key":"ref4","doi-asserted-by":"crossref","first-page":"4813","DOI":"10.3892\/ol.2017.6079","article-title":"An unusual case of pseudomyxoma peritonei associated with synchronous primary mucinous tumors of the ovary and appendix: a case report","volume":"13","author":"Suh DS","year":"2017","journal-title":"Oncol Lett"},{"key":"ref5","doi-asserted-by":"crossref","first-page":"44","DOI":"10.4251\/wjgo.v2.i1.44","article-title":"Pseudomyxoma peritonei","volume":"2","author":"Bevan KE","year":"2010","journal-title":"World J Gastrointest 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peritoneal carcinomatosis index (PCI) ratio is prognostic in patients with epithelial appendiceal mucinous neoplasms and peritoneal dissemination undergoing cytoreduction surgery and intraperitoneal chemotherapy: a retrospective cohort study","volume":"43","author":"Kozman MA","year":"2017","journal-title":"Eur J Surg Oncol"},{"key":"ref10","doi-asserted-by":"crossref","first-page":"1778","DOI":"10.1245\/s10434-016-5623-3","article-title":"Computed tomography follow-up assessment of patients with low-grade appendiceal mucinous neoplasms: evaluation of risk for pseudomyxoma peritonei","volume":"24","author":"Tiselius C","year":"2017","journal-title":"Ann Surg Oncol"},{"key":"ref11","doi-asserted-by":"crossref","first-page":"300","DOI":"10.1097\/01.sla.0000152015.76731.1f","article-title":"Long-term survival following treatment of pseudomyxoma peritonei: an analysis of surgical therapy","volume":"241","author":"Miner TJ","year":"2005","journal-title":"Ann Surg"},{"key":"ref12","first-page":"115","article-title":"Pseudomyxoma peritonei as an intractable disease and its preoperative assessment to help improve prognosis after surgery: a review of the literature","volume":"1","author":"Zhong Y","year":"2012","journal-title":"Intractable Rare Dis Res"},{"key":"ref13","doi-asserted-by":"crossref","first-page":"751","DOI":"10.1016\/S0221-0363(08)73781-8","article-title":"Mucoc\u00e8le appendiculaire et pseudomyxome p\u00e9riton\u00e9al","volume":"89","author":"Fairise A","year":"2008","journal-title":"J Radiol"},{"key":"ref14","doi-asserted-by":"crossref","first-page":"608","DOI":"10.1053\/crad.2002.0942","article-title":"CT in pseudomyxoma peritonei: a review of 17 cases","volume":"57","author":"Sulkin TVC","year":"2002","journal-title":"Clin Radiol"},{"key":"ref15","doi-asserted-by":"crossref","first-page":"471","DOI":"10.2214\/ajr.167.2.8686628","article-title":"Pseudomyxoma peritonei","volume":"167","author":"Walensky RP","year":"1996","journal-title":"AJR Am J Roentgenol"},{"key":"ref16","doi-asserted-by":"crossref","first-page":"457","DOI":"10.1007\/s003300050692","article-title":"Pseudomyxoma retroperitonei","volume":"9","author":"Matsuoka Y","year":"1999","journal-title":"Eur Radiol"},{"key":"ref17","doi-asserted-by":"crossref","first-page":"60","DOI":"10.1186\/1477-7819-4-60","article-title":"Pseudomyxoma peritonei-a revisit: report of 2 cases and literature review","volume":"4","author":"Li C","year":"2006","journal-title":"Word J Surg Oncol"},{"key":"ref18","article-title":"Pseudomyxoma peritonei-what every radiologist should know","author":"Penha D","year":"2013","journal-title":"ECR"},{"key":"ref19","doi-asserted-by":"crossref","first-page":"79","DOI":"10.4102\/sajr.v15i3.371","article-title":"Pseudomyxoma peritonei (PMP) - a rare entity","volume":"15","author":"Ebrahim ZI","year":"2011","journal-title":"Sa Journal of Radiology"},{"key":"ref20","first-page":"3","article-title":"Visceral scalloping on abdominal computed tomography due to abdominal tuberculosis","volume":"4","author":"Sharma V","year":"2017","journal-title":"Ther Adv Infect Dis"},{"key":"ref21","doi-asserted-by":"crossref","first-page":"16","DOI":"10.1007\/BF01888499","article-title":"Pseudomyxoma peritonei with progressive calcifications: CT findings","volume":"17","author":"Matsuoka Y","year":"1992","journal-title":"Gastrointest Radiol"},{"key":"ref22","doi-asserted-by":"crossref","first-page":"645","DOI":"10.1148\/rg.233025134","article-title":"Primary neoplasms of the appendix: radiologic spectrum of disease with pathologic correlation","volume":"23","author":"Pickhardt PJ","year":"2003","journal-title":"Radiographics"},{"key":"ref23","doi-asserted-by":"crossref","first-page":"347","DOI":"10.1148\/rg.292085189","article-title":"Secondary tumors and tumorlike lesions of the peritoneal cavity: imaging features with pathologic correlation","volume":"29","author":"Levy 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