Reproduction with a unicornuate uterus with a functional rudimentary horn

DOI

https://dx.doi.org/10.18565/aig.2025.289

Baranouskaya A.I., Voronetsky A.N., Bogush M.A., Budzko N.N.
1) Belarusian State Medical University, Minsk, Republic of Belarus; 2) City Clinical Maternity Hospital No. 2, Minsk, Republic of Belarus

Background: A unicornuate uterus occurs with a frequency of 0.02% in the population and 10% among all congenital uterine anomalies (CUAs). CUAs are associated with preterm birth, assisted reproductive technologies and cesarean section.
Case report: The article presents the clinical case report of consecutive unsuccessful pregnancies, in vitro fertilization (IVF), surgical treatment of CUA and the use of reproductive technologies that resulted in the birth of a healthy full-term child.
In the clinical report, two uteri were visualized using a two-dimensional pelvic ultrasound in a patient after completing her first pregnancy with a spontaneous miscarriage at 9 weeks gestation. The second pregnancy was ectopic and therefore the patient underwent laparoscopic salpingectomy on the right. Additionally, the type of CUA was determined, namely, a unicornuate right uterus with a rudimentary horn on the left. Subsequently, pregnancy did not occur and hysterosalpingography revealed that the right fallopian tube was blocked. Then there were the following events: unsuccessful IVF, surgery to remove the rudimentary horn of the uterus, unsuccessful transfer of two thawed embryos, preimplantation genetic testing (PGT) for aneuploidy, elective transfer of one embryo with a clinical pregnancy resulting in the birth of a healthy full-term baby by cesarean section.
Conclusion: Reproductive disorders are the most significant clinical manifestations of CUAs. The diagnosis of CUA is limited in time in women of advanced reproductive age planning pregnancy; therefore, it is necessary to use the most effective imaging techniques. Surgical removal of the rudimentary horn is the treatment of choice. IVF, PGT and elective single embryo transfer contribute to the achievement of pregnancy and its successful outcome.

Authors’ contributions: Baranouskaya A.I., Voronetsky A.N. – developing the concept and design of the study, editing the article; Baranouskaya A.I., Voronetsky A.N., Bogush M.A., Budzko N.N. – collecting and processing the material; Baranouskaya A.I. – writing the text.
Conflicts of interest: Authors declare lack of the possible conflicts of interest.
Funding: The study was carried out without sponsorship.
Patient Consent for Publication: The patient signed an informed consent for the publication of her data and associated images.
For citation: Baranouskaya A.I., Voronetsky A.N., Bogush M.A., Budzko N.N.
Reproduction with a unicornuate uterus with a functional rudimentary horn.
Akusherstvo i Ginekologiya/Obstetrics and Gynecology. 2026; (3): 191-197 (in Russian)
https://dx.doi.org/10.18565/aig.2025.289

congenital uterine anomaly

unicornuate uterus

hysterosalpingography

ultrasound

infertility

in vitro fertilization

assisted reproduction

pregnancy

cesarean section

Full text (in Russian)

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Received 14.10.2025

Accepted 12.01.2026

Alena I. Baranouskaya, MD, Professor, Professor of the Department of Obstetrics and Gynecology with a course for advanced training and retraining, Belarusian State Medical University. 220083, Dzerzhinsky Ave., 83, Minsk, Belarus, elena_baranovska@mail.ru, https://orcid.org/0000-0002-2116-4675
Aliaksandr N. Voronetsky, PhD, Associate Professor of the Department of Pediatric Surgery with a course for advanced training and retraining, Belarusian State Medical University, 220083, Dzerzhinsky Ave., 83, Minsk, Belarus, anvoron@mail.ru, https://orcid.org/0000-0001-7091-376X
Maria A. Bogush, obstetrician-gynecologist, Head of the Consultative and Diagnostic Department, City Clinical Maternity Hospital No. 2, 220015, Belsky str, 60, Minsk, Belarus.
Natallia N. Budzko, obstetrician-gynecologist, Head of the Pregnancy Pathology Department, City Clinical Maternity Hospital No. 2, 220015, Belsky str., 60, Minsk, Belarus.
Corresponding author: Alena I. Baranouskaya, elena_baranovska@mail.ru

Reproduction with a unicornuate uterus with a functional rudimentary horn

Baranouskaya A.I., Voronetsky A.N., Bogush M.A., Budzko N.N.

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