August 9th, 2022

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Rudimentary Horn Pregnancy: A Case Report
Authors:  Paul B. Miller, M.D.
BACKGROUND: Mùˆllerian anomalies occur in 1% of all women, 20% of which are unicornuate uteri. This anomaly is often associated with a noncommunicating, rudimentary, contralateral horn with a normal fallopian tube. Rudimentary horn pregnancy can be life-threatening, with a 50% rupture rate.

CASE: This case report involves the emergent treatment of a 29-year-old woman with a ruptured rudimentary horn pregnancy following ultrasound misdiagnosis. This report and literature review is intended to create awareness and improve outcomes.

CONCLUSION: Uterine horn pregnancy should be suspected in women undergoing first trimester sonography with abnormal uterine anatomy.
Keywords:  diagnostic imaging, ectopic pregnancy, horn, laparoscopy, magnetic resonance imaging, Mullerian ducts/abnormalities, pregnancy complications, rudimentary, rupture, ultrasound, unicornuate uterus, uterine horn pregnancy, uterine rupture, uterus/abnormalities, uterus/pathology
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