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Peer-reviewedCC BY-NC-NDRadiology case reports

Right double inferior vena cava with a retrocaval ureter and preaortic iliac venous confluence: A case report with embryological considerations.

  • Akitoshi Kanagawa1,2
  • Yoshiaki Katada1
  • Reiji Kokubo1
  • Natsuhiko Shirota1
  • Gen Arai1
  • Ruriko Honzawa1
  • Wataru Nagashima1
  • Kazuhiro Saito2
  1. 1Department of Radiology, Tokyo Medical University Ibaraki Medical Center, 3-20-1 Chuo, Ami-machi, Inashiki-gun, Ibaraki 300-0395, Japan.
  2. 2Department of Radiology, Tokyo Medical University, 6-7-1 Nishishinjuku, Shinjuku-ku, Tokyo 160-0023, Japan.
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Abstract

With advances in diagnostic imaging, congenital anomalies of the inferior vena cava are being increasingly detected incidentally in asymptomatic patients. Double inferior vena cava is a relatively well-known anomaly, with an estimated prevalence rate of 0.2%-3%. In contrast, right double inferior vena cava-in which two inferior vena cava run parallel on the right side of the abdominal aorta-is extremely rare, with only a handful of reported cases. In this case, the spatial relationship between the two inferior vena cava-which was lateral-to-medial immediately below the renal veins-changed to dorsal-to-ventral at the level of the pelvic inlet. From an embryological perspective, we discuss the spatial relationship between the two inferior vena cava, drawing on previous reports.

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Cite

BibTeXRIS
BibTeX
@article{kanagawa2026right,
  title = {{Right double inferior vena cava with a retrocaval ureter and preaortic iliac venous confluence: A case report with embryological considerations.}},
  author = {Akitoshi Kanagawa and Yoshiaki Katada and Reiji Kokubo and Natsuhiko Shirota and Gen Arai and Ruriko Honzawa and Wataru Nagashima and Kazuhiro Saito},
  journal = {Radiology case reports},
  year = {2026},
  month = oct,
  doi = {10.1016/j.radcr.2026.09.051},
  url = {https://europepmc.org/article/MED/42921016},
  note = {CC BY-NC-ND},
}
RIS
TY  - JOUR
TI  - Right double inferior vena cava with a retrocaval ureter and preaortic iliac venous confluence: A case report with embryological considerations.
AU  - Akitoshi Kanagawa
AU  - Yoshiaki Katada
AU  - Reiji Kokubo
AU  - Natsuhiko Shirota
AU  - Gen Arai
AU  - Ruriko Honzawa
AU  - Wataru Nagashima
AU  - Kazuhiro Saito
PY  - 2026
DA  - 2026/10/20
JO  - Radiology case reports
DO  - 10.1016/j.radcr.2026.09.051
UR  - https://europepmc.org/article/MED/42921016
AB  - With advances in diagnostic imaging, congenital anomalies of the inferior vena cava are being increasingly detected incidentally in asymptomatic patients. Double inferior vena cava is a relatively well-known anomaly, with an estimated prevalence rate of 0.2%-3%. In contrast, right double inferior vena cava-in which two inferior vena cava run parallel on the right side of the abdominal aorta-is extremely rare, with only a handful of reported cases. In this case, the spatial relationship between the two inferior vena cava-which was lateral-to-medial immediately below the renal veins-changed to dorsal-to-ventral at the level of the pelvic inlet. From an embryological perspective, we discuss the spatial relationship between the two inferior vena cava, drawing on previous reports.
SN  - 1930-0433
ER  -