{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,24]],"date-time":"2026-10-24T03:41:33Z","timestamp":1792813293837,"version":"4.5.0"},"reference-count":26,"publisher":"Wiley","license":[{"start":{"date-parts":[[2026,10,23]],"date-time":"2026-10-23T00:00:00Z","timestamp":1792713600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"},{"start":{"date-parts":[[2026,10,23]],"date-time":"2026-10-23T00:00:00Z","timestamp":1792713600000},"content-version":"tdm","delay-in-days":0,"URL":"http:\/\/doi.wiley.com\/10.1002\/tdm_license_1.1"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["J of Ultrasound Medicine"],"abstract":"<jats:sec>\n                    <jats:title>Objectives<\/jats:title>\n                    <jats:p>To evaluate the ultrasound diagnostic performance in female pediatric patients with ectopic\u2010ureter insertion into the vagina\/vestibule or urethra\/bladder neck and to compare patient characteristics.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>Of 34 patients (35 vesicoureteral junctions), ultrasonically evaluated ectopic\u2010ureter presence and location (vagina\/vestibule or urethra\/bladder neck). Patients were classified into 2 groups based on surgical findings: with vagina\/vestibule or urethra\/bladder\u2010neck insertion. Correct\/incorrect location of ectopic\u2010ureter insertion using ultrasound, presence\/absence of nonfunctional kidneys, a duplex collecting system, and duplex vagina were compared between both groups using Fisher's exact test.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      Of 35 vesicoureteral junctions, 5 could not be evaluated at the junction, 30 (85.7%) had a suspected ectopic ureter, and 26 (74.3%) had a correct location diagnosis. Of 14 with vagina\/vestibule insertion, 7 (50.0%) had correctly diagnosed locations. Of 21 with urethra\/bladder\u2010neck insertion, 19 (90.5%) were correctly diagnosed using ultrasound. Of the 13 of 15 patients with nonfunctional kidneys\/duplex urinary system, 9 of 1 had findings involving the vagina\/vestibule, and 4 of 14 had findings involving the urethra\/bladder neck. Statistically significant differences were observed in correct\/incorrect ultrasound diagnosis for the location of ectopic\u2010ureter insertions (vagina\/vestibule, 7\/7; urethra\/bladder\u2010neck insertions, 19\/2;\n                      <jats:italic>p<\/jats:italic>\n                      \u2009=\u2009.015), nonfunctional\/functional kidneys (vagina\/vestibule, 9\/5; urethra\/bladder\u2010neck insertions, 4\/17;\n                      <jats:italic>p<\/jats:italic>\n                      \u2009=\u2009.012), and presence\/absence of duplex collecting system on the ipsilateral side of the ectopic ureter (vagina\/vestibule 1\/13; urethra\/bladder\u2010neck insertions, 14\/7;\n                      <jats:italic>p<\/jats:italic>\n                      \u2009&lt;\u2009.001). There were no significant differences in presence\/absence of duplex vagina (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009=\u2009.090).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>Ultrasound was useful in detecting ectopic\u2010ureter presence. However, the diagnostic performance for determining the location of vagina\/vestibule insertions was approximately 50%. Sonographers should carefully evaluate the vesicoureteral\u2010insertion location, particularly in cases with nonfunctional kidneys.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1002\/jum.70514","type":"journal-article","created":{"date-parts":[[2026,10,24]],"date-time":"2026-10-24T03:10:31Z","timestamp":1792811431000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Ultrasonographic Diagnosis of Ectopic Ureter Draining into the Vagina or Vestibule"],"prefix":"10.1002","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-9523-4077","authenticated-orcid":false,"given":"Takahiro","family":"Hosokawa","sequence":"first","affiliation":[{"name":"Department of Radiology Saitama Children's Medical Center  Saitama Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kensuke","family":"Ohashi","sequence":"additional","affiliation":[{"name":"Division of Urology Saitama Children's Medical Center  Saitama Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shinsuke","family":"Yoshizawa","sequence":"additional","affiliation":[{"name":"Division of Urology Saitama Children's Medical Center  Saitama Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yumiko","family":"Sato","sequence":"additional","affiliation":[{"name":"Department of Radiology Saitama Children's Medical Center  Saitama Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yutaka","family":"Tanami","sequence":"additional","affiliation":[{"name":"Department of Radiology Saitama Children's Medical Center  Saitama Japan"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Eiji","family":"Oguma","sequence":"additional","affiliation":[{"name":"Department of Radiology Saitama Children's Medical Center  Saitama 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