First Department of Oral Anatomy, School of Dentistry, Iwate Medical University
First Department of Oral Anatomy, School of Dentistry, Iwate Medical University
First Department of Oral Anatomy, School of Dentistry, Iwate Medical University
First Department of Oral Anatomy, School of Dentistry, Iwate Medical University
First Department of Oral Anatomy, School of Dentistry, Iwate Medical University
First Department of Oral Anatomy, School of Dentistry, Iwate Medical University
First Department of Oral Anatomy, School of Dentistry, Iwate Medical University
First Department of Oral Anatomy, School of Dentistry, Iwate Medical University
First Department of Oral Anatomy, School of Dentistry, Iwate Medical University
We encountered a case of duplication of the inferior vena cava in a cadaver. This was thought to be caused by persistence of the right and the left supracardinal veins, and this case was classified as type BC in the classification systems developed by McClure and Butler (1925) and Chuang et al. (1974). Double inferior vena cava is not a rare anomaly, and clinicians should be aware of this anomaly. Duplication of the inferior vena cava may cause other changes in the venous system, such as dislocation of the drainage position of the right gonadal vein from the inferior vena cava to the right renal vein. We also suggest that this anomaly causes duplication of the gonadal vein.