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Case Reports
. 2025 Apr 4;25(1):399.
doi: 10.1186/s12884-025-07530-2.

Prenatal sonographic diagnosis of cloacal malformation associated with uterus didelphys and bilateral hydrometrocolpos: a case report

Xing Xu  1 , Hongxia Yuan  2 , Rong Tian  1 , Xiaohong Lu  1 , Lingling Li  1
Affiliations
Case Reports

Prenatal sonographic diagnosis of cloacal malformation associated with uterus didelphys and bilateral hydrometrocolpos: a case report

Xing Xu et al. BMC Pregnancy Childbirth. .

Abstract

Introduction: Cloacal malformation is a rare and complex group of congenital abnormalities involving anomalies of the genitourinary and gastrointestinal systems. The most common prenatal ultrasound finding is the presence of abnormal pelvic cystic masses.

Case presentation: We present a case of cloacal malformation associated with uterus didelphys and bilateral hydrometrocolpos, diagnosed by prenatal ultrasound at 29 weeks of gestation. The diagnosis was confirmed by postmortem examination following induced labor.

Conclusion: Abnormal pelvic cystic masses detected prenatally require close observation and monitoring. Prenatal ultrasound provides accurate and detailed diagnostic information, which is crucial to prenatal counseling and management.

Keywords: Cloacal malformation; Pelvic cystic mass; Prenatal ultrasound; Three-dimensional inversion mode; Uterus didelphys.

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Conflict of interest statement

Declarations. Ethics approval and consent to participate: This study was approved by the Human Research Ethics Committee of Changsha Maternal and Child Health Hospital. All the authors approved the manuscript. Consent for publication: Written informed consent was obtained from the patient for publication of this case report and any accompanying images. Competing interests: The authors declare no competing interests. Clinical trial: Not applicable.

Figures

Fig. 1
Fig. 1
Prenatal ultrasound images at 29 weeks of gestation. Two-dimensional ultrasound revealed hydrometrocolpos (A) and a trilobed cystic mass (B). Three-dimensional inversion mode imaging revealed bilateral hydrometrocolpos (C) and one of the uterine horns in the uterus didelphys (D). UT, uterus; BL, bladder
Fig. 2
Fig. 2
Postmortem examination images. A stillborn female infant was delivered without an anus, with only one opening was observed in the perineal vestibule (A). Uterus didelphys was noted posterior to the bladder (B). Bilateral hydrometrocolpos and terminal rectal atresia were observed (C)
See this image and copyright information in PMC

References

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