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. 2024 Jan 3;14(1):1167-1172.
doi: 10.21037/qims-23-889. Epub 2023 Nov 20.

A case of rudimentary uterine horn pregnancy complicated with placental implantation in later stages of pregnancy

Shengfang Xu  1   2   3   4 , Jinlong Zhang  5 , Songhong Yue  1   2   3 , Jifang Qian  4 , Lei Yang  4 , Yuan-Zhe Xu  6 , Jing Zhang  1   2   3
Affiliations

A case of rudimentary uterine horn pregnancy complicated with placental implantation in later stages of pregnancy

Shengfang Xu et al. Quant Imaging Med Surg. .
No abstract available

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Conflict of interest statement

Conflicts of Interest: All authors have completed the ICMJE uniform disclosure form (available at https://qims.amegroups.com/article/view/10.21037/qims-23-889/coif). The authors have no conflicts of interest to declare.

Figures

Figure 1
Figure 1
Prenatal pelvic MRI showed RHP complicated with placenta implantation, and accessory placenta. Intrauterine single fetus, breech position, umbilical cord around the neck (A), placenta mainly located in the posterior inferior wall of the uterus, a signal shadow of the uterine body was seen above the posterior bladder and below the pregnant uterus, which communicated with the cervix (B), and accessory placenta signal shadows in the right anterior wall of the uterus (C). The placental parenchyma signals were uneven and multiple tortuous blood vessels were seen in the placenta, T2WI showed low signals (D), T2WI trufi sequences showed equal and slightly lower signals (E), T1WI showed equal and slightly higher signals (F), DWI sequences showed equal and slightly lower signals (G), and ADC images showed slightly lower signals (H). (A) Coronal position on T2WI; (B) sagittal position on T2WI; (C) axial position of T2WI; (D) oblique coronal position on T2WI; (E) T2WI trufi sagittal position; (F) T1WI sagittal position; (G) sagittal position of DWI map; (H) sagittal section of ADC diagram. Normal uterus (fine white arrow), residual horn uterus (fine black arrow), accessory placenta (white triangle); multiple tortuous blood vessels in the placenta (thick white arrow). MRI, magnetic resonance imaging; RHP, rudimentary uterine horn pregnancy; T2WI, T2-weighted imaging; T1WI, T1-weighted imaging; DWI, diffusion-weighted imaging; ADC, apparent diffusion coefficient.
Figure 2
Figure 2
Intraoperative observation: a uterus was palpable at the lower right side of the pelvic cavity, with the size of about 10 cm × 8 cm; the pregnant uterus was located at the left side of the abdomen connecting with the angle of the lower right side of the uterus; the blood vessels on the surface of the pregnant uterus were dilated.
Figure 3
Figure 3
Intraplacental hematoma: a mass of grayish red aplastic tissue is seen, measuring 2.5 cm × 2.0 cm × 1.5 cm.
Figure 4
Figure 4
Pathological biopsy (hematoxylin & eosin, ×100): microscopically, the endometrium at placenta attachment lacked the decidua layer and some villi (fine black arrow) invaded the uterine muscle wall (fine white arrow).
See this image and copyright information in PMC

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