Chenin Louis, Tandabany Sharmila, Foulon Pascal, Havet Eric, Peltier Johann
Department of Anatomy and Organogenesis, Jules Verne University of Picardie, 80054, Amiens cedex, France.
Department of Neurosurgery, Amiens University Medical Center, Avenue René Laennec, Salouel, 80054, Amiens cedex 1, France.
Surg Radiol Anat. 2018 Jan;40(1):115-117. doi: 10.1007/s00276-017-1917-9. Epub 2017 Sep 5.
The median sacral artery (MSA) is a relatively small vessel that always arises from the posterior, terminal part of the infrarenal aorta. In most cases, the MSA runs behind the iliocaval junction. Here, we describe a very rare case of an MSA running in front of this junction.
During a human cadaveric dissection of the retroperitoneal area, we unexpectedly observed that the MSA passed in front of the left common iliac vein.
The anatomy of the MSA has been extensively described and variations are quite rare. On the basis of this specific case, knowledge of the anatomic interactions between the MSA and other lumbar retroperitoneal vessels may help to avoid potential complications during surgery.
骶中动脉（MSA）是一条相对较小的血管，通常起自肾下腹主动脉的后部终末段。在大多数情况下，骶中动脉走行于髂总静脉汇合处的后方。在此，我们描述一例极为罕见的骶中动脉走行于该汇合处前方的病例。
在一次人体腹膜后区域尸体解剖过程中，我们意外观察到骶中动脉走行于左髂总静脉前方。
骶中动脉的解剖结构已被广泛描述，变异情况相当罕见。基于这一特殊病例，了解骶中动脉与其他腹膜后腰部血管之间的解剖学相互关系可能有助于避免手术期间的潜在并发症。
