Anwar Hamsat, Pardi Andrew, Patel Mira, Raquib Aaishah R, Andrews Katherine, Broniak Christine, Sperling Edith Edie
Medicine, Western University of Health Sciences COMP-NW (College of Osteopathic Medicine of the Pacific - Northwest), Portland, USA.
College of Medicine, Western University of Health Sciences, Lebanon, USA.
Cureus. 2025 Apr 3;17(4):e81652. doi: 10.7759/cureus.81652. eCollection 2025 Apr.
The inferior vena cava (IVC) is a large, retroperitoneal vein that ascends anterolaterally along the right side of the vertebral column, draining venous blood from both lower extremities, the pelvis, and the abdomen to the right atrium of the heart. The IVC undergoes complex embryological development during the fourth to eighth weeks of gestation, which can result in many anatomical variations, including duplication of the IVC. This study presents the case of duplicated IVCs in a 79-year-old male donor patient. While the second IVC on the left side of the body generally terminates by draining into the left renal vein, the individual described here demonstrated an extension superior to the renal veins, with the renal and gonadal veins draining into the ipsilateral IVCs. The two IVCs joined at T9 and passed as one into the right atrium at T8. The IVC's role as the largest vein in the body is important to consider when assessing any vascular abnormality present in the IVC and its potential implications, which may include a higher risk of venous thromboembolism or pulmonary embolism.
下腔静脉（IVC）是一条粗大的腹膜后静脉，沿脊柱右侧前外侧上行，将来自双下肢、骨盆和腹部的静脉血引流至心脏的右心房。在妊娠第4至8周期间，下腔静脉经历复杂的胚胎发育过程，这可能导致许多解剖变异，包括下腔静脉重复。本研究报告了一名79岁男性供体患者下腔静脉重复的病例。虽然身体左侧的第二条下腔静脉通常通过汇入左肾静脉而终止，但此处描述的个体显示其延伸至肾静脉上方，肾静脉和性腺静脉汇入同侧的下腔静脉。两条下腔静脉在T9处汇合，并在T8处作为一条静脉进入右心房。在评估下腔静脉中存在的任何血管异常及其潜在影响时，考虑下腔静脉作为人体最大静脉的作用非常重要，这些潜在影响可能包括静脉血栓栓塞或肺栓塞的风险增加。
