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Of these cases, 2 involved the small bowel, and 1 involved the peritoneum. Cases 1 and 3 had the characteristic CCS morphology, but case 2 was morphologically unusual and therefore difficult to diagnose. It had relatively small cells with less prominence of clear cells; many pseudoglandular structures were also present. It also showed aberrant expression of epithelial membrane antigen (EMA). The other 2 cases also involved some diagnostic uncertainty and were therefore referred to specialized centers. The authors wish to emphasize the importance of molecular studies in making a conclusive diagnosis of intra-abdominal CCS.<\/jats:p>","DOI":"10.1177\/1066896911425485","type":"journal-article","created":{"date-parts":[[2011,11,15]],"date-time":"2011-11-15T07:55:33Z","timestamp":1321343733000},"page":"378-385","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":25,"title":["Intra-abdominal Clear-Cell Sarcoma"],"prefix":"10.1177","volume":"20","author":[{"given":"Patrick","family":"Shenjere","sequence":"first","affiliation":[{"name":"The Christie NHS Foundation Trust, Manchester, UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Walid D.","family":"Salman","sequence":"additional","affiliation":[{"name":"East Lancashire Hospitals NHS Trust, Burnley, UK"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mayuri","family":"Singh","sequence":"additional","affiliation":[{"name":"East Lancashire 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