Unicornuate uterus
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| Unicornuate uterus Classification and external resources |
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- Failure of one müllerian duct to elongate while the other develops normally
- Accounts for approximately 20% of müllerian duct anomalies.
- The embryologic predominance of the unicornuate uterus to be on the right has not been explained.
- Spontaneous abortion rates are reported to range from 41% to 62%.
- Reported premature birth rates range from 10% to 20%
- Fetal survival rates, from 38% to 57% (pooled data, 40%).
- Renal abnormalities are more commonly associated with unicornuate uterus than with other müllerian duct anomalies
- Reported in 40% of these patients.
- Anomaly is always ipsilateral to the rudimentary horn.
- Renal agenesis is the most commonly reported abnormality, occurring in 67% of cases.
Diagnosis
HSG
- Endometrial cavity assumes a fusiform shape, tapering at the apex and draining into a solitary fallopian tube.
- Uterus is generally shifted off of midline.
MRI
- Unicornuate uterus appears curved and elongated, with the external uterine contour assuming a banana shape.
- Uterine volume is reduced, and the configuration of the uterus is asymmetric.
- Normal myometrial zonal anatomy is maintained.
Images
Patient #1
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See Also
- Mullerian duct anomalies classification system
- Arcuate uterus
- Bicornuate uterus
- Septate uterus
- Uterus didelphys
External Links
References for Unicornuate uterus
- Robert N. Troiano, and Shirley M. McCarthy. Müllerian Duct Anomalies: Imaging and Clinical Issues. Radiology 2004 233: 19-34.
Acknowledgement and Attribution Regarding Sources of Content
Some of the initial content on this page may be incorporated in part from copyleft sources in the public domain including wikis such as Wikipedia and AskDrWiki. Drug information for patients came from the The National Library of Medicine. Infectious disease information may have come from the Centers for Disease Control (CDC). Differential Diagnoses are drawn from clinicians as well as an amalgamation of 3 sources: 1.The Disease Database; 2. Kahan, Scott, Smith, Ellen G. In A Page: Signs and Symptoms. Malden, Massachusetts: Blackwell Publishing, 2004:3; 3. Sailer, Christian, Wasner, Susanne. Differential Diagnosis Pocket. Hermosa Beach, CA: Borm Bruckmeir Publishing LLC, 2002:7 .
