Chaijaroonkhanarak W, Pannangrong W, Welbat J Umka, Namking M, Khamanarong K, Prachaney P
Department of Anatomy, Faculty of Medicine, Khon Kaen University, Khon Kaen, Thailand, Thailand.
Folia Morphol (Warsz). 2017;76(2):307-311. doi: 10.5603/FM.a2016.0076. Epub 2016 Dec 27.
Inferior vena cava (IVC) is the largest single vein that collects systemic venous blood from the lower part of the body except the gut and drains into the right atrium. Double IVC is a rare anomaly in humans and usually is discovered incidentally during the interventional radiological procedures or routine cadaveric dissection. Here we report a rare case of unusual observations in an adult female Thai cadaver with a duplicated left IVC with three short venous shunts and a variant pattern of the hemiazygos vein. Also included in this case was the presence of unilateral double renal vein on the right kidney. This type of anatomic variation of the great vein has never been reported before. A detailed description of these variations is useful and essential for the surgeons during approaching the retroperitoneal region.
下腔静脉（IVC）是收集除肠道外身体下部体循环静脉血并排入右心房的最大单一静脉。双下腔静脉在人类中是一种罕见的异常情况，通常在介入放射学检查或常规尸体解剖过程中偶然发现。在此，我们报告一例罕见病例，在一名成年泰国女性尸体中观察到异常情况，即左侧下腔静脉重复出现，伴有三条短静脉分流以及半奇静脉的变异模式。该病例还包括右肾存在单侧双肾静脉。这种大静脉的解剖变异类型此前从未有过报道。这些变异的详细描述对外科医生在处理腹膜后区域时非常有用且至关重要。
