title: Prenatal diagnosis of penoscrotal transposition with 2- and 3-dimensional ultrasonography.
abstract: OBJECTIVE
  The purpose of this study was to determine the prenatal diagnostic accuracy of 2-dimensional ultrasonography (2DUS) alone versus 2DUS in combination with 3-dimensional ultrasonography (3DUS) for penoscrotal transposition.
  
  
  METHODS
  Fetuses suspected of having penoscrotal transposition on the basis of ultrasonographic findings or a family history were examined by 2DUS and then 3DUS.
  
  
  RESULTS
  Of a total of 22 fetuses, 14 had penoscrotal transposition at birth. The combination of 2DUS and 3DUS correctly identified more of the penoscrotal transposition cases than 2DUS alone (90.9% versus 63.6%; P < .05).
  
  
  CONCLUSIONS
  The combination of 2DUS and 3DUS improved the prenatal detection rate for penoscrotal transposition compared with 2DUS alone.
authors.affiliation: Department of Ultrasound, Affiliated Shengjing Hospital of China Medical University, 36 Sanhao Rd, Heping District, 110004 Shenyang, Liaoning, China. wangyy41@126.com
authors.forename: Yanhai
authors.initials: Y
authors.lastname: Wang
authors.forename: Ailu
authors.initials: A
authors.lastname: Cai
authors.forename: Jiaxing
authors.initials: J
authors.lastname: Sun
authors.forename: Ting
authors.initials: T
authors.lastname: Li
authors.forename: Bing
authors.initials: B
authors.lastname: Wang
authors.forename: Jingyu
authors.initials: J
authors.lastname: Li
mesh_terms: D000015:Abnormalities, Multiple / Q000000981:diagnostic imaging*; D005260:Female; D005865:Gestational Age; D006801:Humans; D021621:Imaging, Three-Dimensional; D007231:Infant, Newborn; D008297:Male; D010413:Penis / Q000002:abnormalities* / Q000000981:diagnostic imaging; D011247:Pregnancy; D012611:Scrotum / Q000002:abnormalities* / Q000000981:diagnostic imaging; D016216:Ultrasonography, Prenatal; D014522:Urethral Diseases / Q000000981:diagnostic imaging*