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GYNECOLOGY

Why are some ectopic pregnancies characterized as pregnancies of unknown location at the initial transvaginal ultrasound examination?

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Pages 1150-1154 | Received 26 Apr 2008, Published online: 03 Aug 2009

References

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  • Condous G, Okaro E, Khalid A, Lu C, Van Huffel S, Timmerman D, et al. The accuracy of transvaginal ultrasonography for the diagnosis of ectopic pregnancy prior to surgery. Hum Reprod. 2005; 20: 1404–9
  • Kirk E, Papageorghiou AT, Condous G, Tan L, Bora S, Bourne T. The diagnostic effectiveness of an initial transvaginal scan in detecting ectopic pregnancy. Hum Reprod. 2007; 22: 2824–8
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  • Cacciatore B. Can the status of tubal pregnancy be predicted with transvaginal sonography? A prospective comparison of sonographic, surgical, and serum hCG findings. Radiology. 1990; 177(2)481–4
  • Banerjee S, Aslam N, Woelfer B, Lawrence A, Elson J, Jurkovic D. Expectant management of early pregnancies of unknown location: a prospective evaluation of methods to predict spontaneous resolution of pregnancy. BJOG. 2001; 1082: 158–63

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