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The sensitivity of ultrasound in diagnosing endometrial cancer is high, but it has a small, well\u2010defined false\u2010negative rate. In this report we describe two cases, with histological confirmation, of postmenopausal women without any vaginal bleeding, who were subsequently diagnosed with advanced endometrial cancer. They were found to have a thin, normal endometrium on ultrasound. In both cases, histological examination was suggestive of endometrial cancer originating from foci of adenomyosis. These findings suggest that a proportion of the false\u2010negative diagnoses of endometrial cancer on ultrasound could be caused by the disease being confined to the myometrium rather than as a result of suboptimal performance of ultrasound examination. Copyright \u00a9 2011 ISUOG. Published by John Wiley &amp; Sons, Ltd.<\/jats:p>","DOI":"10.1002\/uog.9062","type":"journal-article","created":{"date-parts":[[2011,5,24]],"date-time":"2011-05-24T16:06:11Z","timestamp":1306253171000},"page":"106-109","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":12,"title":["Endometrial cancer and ultrasound: why measuring endometrial thickness is sometimes not enough"],"prefix":"10.1002","volume":"39","author":[{"given":"J.","family":"Naftalin","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"N.","family":"Nunes","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"W.","family":"Hoo","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"R.","family":"Arora","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"D.","family":"Jurkovic","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2011,12,5]]},"reference":[{"key":"e_1_2_3_2_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.ijgo.2009.02.012"},{"key":"e_1_2_3_3_2","doi-asserted-by":"publisher","DOI":"10.1001\/jama.280.17.1510"},{"key":"e_1_2_3_4_2","doi-asserted-by":"publisher","DOI":"10.3109\/00016349309023423"},{"key":"e_1_2_3_5_2","doi-asserted-by":"publisher","DOI":"10.1055\/s-2007-1005305"},{"key":"e_1_2_3_6_2","doi-asserted-by":"publisher","DOI":"10.1046\/j.1469-0705.1995.06020075.x"},{"key":"e_1_2_3_7_2","doi-asserted-by":"publisher","DOI":"10.1016\/0002-9378(58)90565-9"},{"key":"e_1_2_3_8_2","first-page":"342","article-title":"Carcinoma developing in areas of adenomyosis","volume":"14","author":"Colman H","year":"1959","journal-title":"Obstet Gynecol"},{"key":"e_1_2_3_9_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.bpobgyn.2006.01.005"},{"key":"e_1_2_3_10_2","doi-asserted-by":"publisher","DOI":"10.1056\/NEJM199712183372502"},{"key":"e_1_2_3_11_2","doi-asserted-by":"publisher","DOI":"10.1006\/gyno.1993.1107"},{"key":"e_1_2_3_12_2","doi-asserted-by":"publisher","DOI":"10.1097\/01.MP.0000043523.03519.FC"}],"container-title":["Ultrasound in Obstetrics &amp; Gynecology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1002%2Fuog.9062","content-type":"unspecified","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/obgyn.onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/uog.9062","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,10,16]],"date-time":"2023-10-16T04:22:15Z","timestamp":1697430135000},"score":1,"resource":{"primary":{"URL":"https:\/\/obgyn.onlinelibrary.wiley.com\/doi\/10.1002\/uog.9062"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2011,12,5]]},"references-count":11,"journal-issue":{"issue":"1","published-print":{"date-parts":[[2012,1]]}},"alternative-id":["10.1002\/uog.9062"],"URL":"https:\/\/doi.org\/10.1002\/uog.9062","archive":["Portico"],"relation":{},"ISSN":["0960-7692","1469-0705"],"issn-type":[{"value":"0960-7692","type":"print"},{"value":"1469-0705","type":"electronic"}],"subject":[],"published":{"date-parts":[[2011,12,5]]},"assertion":[{"value":"2011-05-04","order":1,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2011-12-05","order":2,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}]}}