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Pathological findings revealed placenta previa totalis with adenomyosis beneath the placenta at the lower segment, with no adherent placenta. In conclusion, this report underlines the importance of possible false-positive test of prenatal ultrasound and MRI findings of adherent placenta caused by underlying adenomyosis which could obliterate the outline distinguishing the placenta and myometrium and atypical vessels secondary to decidualisation and hypervascularity from pregnancy. This case may probably encourage physician to beware of false-positive test of adherent placenta due to adenomyosis.<\/jats:p>","DOI":"10.1136\/bcr-2013-201509","type":"journal-article","created":{"date-parts":[[2014,4,10]],"date-time":"2014-04-10T09:13:07Z","timestamp":1397121187000},"page":"bcr2013201509","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":1,"title":["Adenomyosis in pregnancy mimicking morbidly adherent placenta"],"prefix":"10.1136","volume":"2014","author":[{"given":"Theera","family":"Tongsong","sequence":"first","affiliation":[{"name":"Department of Obstetrics and Gynecology, Chiang Mai University, Chiang Mai, Thailand"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Surapan","family":"Khunamornpong","sequence":"additional","affiliation":[{"name":"Department of Pathology, Chiang Mai University, Chiang Mai, 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