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Hydatidiform Mole: Sensitivity and Specificity

Introduction: Hydatidiform mole is a benign neoplasm of trophoblastic tissue. It is thought to occur when a sperm fertilizes an empty egg.

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Tags: Gynecologic Tag this Diagnosis.

Prevalence

Population / CalculatorPrevalence Comments / Study / Link
All pregnancies 0.1% UpToDate http://www.utdol.com/online/content/topic.do?topicKey=gyne_onc/7618
Pregnancies in women with previous molar pregnancy 1% UpToDate http://www.utdol.com/online/content/topic.do?topicKey=gyne_onc/7618
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The sensitivity and specificity of findings for Hydatidiform Mole are listed below. See the left navigation bar to change the display.

Pre-Test Probability (Prevalence): %. Post-Test Probability (Predictive Value): %. Switch to display mode.
**Note that calculating probabilities from more than one finding is inherently inaccurate because findings are not independent. (For example, using two positive findings that share a common pathogenesis is likely to overestimate the true probability.)
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FindingResult SensitivitySpecificity
[ + ] Transvaginal US + 0 - 44%74%

 

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