Division of Anatomy, Department of Basic Medical Sciences, Manipal Academy of Higher Education, Udupi District, Manipal, Karnataka, 576104, India.
Surg Radiol Anat. 2024 Sep;46(9):1491-1493. doi: 10.1007/s00276-024-03434-6. Epub 2024 Jul 17.
Obturator vein usually terminates into the internal iliac vein. Its variations are the cause major bleeding problems in pelvic surgeries. We observed a rare variation in the termination of the right obturator vein. There was a duplication of right obturator vein. Both obturator veins entered the pelvic cavity through the obturator foramen and joined with two vesical veins to form a vesico-obturator plexus. This plexus surrounded the internal iliac artery and terminated into the internal iliac vein. Awareness of this rare variation could be of importance to anatomists, radiologists, gynaecologists, urologists, and orthopaedic surgeons. The plexus might lead to hazardous bleeding in pelvic lymph node clearance procedures, hernia surgeries, gynaecological and orthopaedic procedures in this region. The pelvic fractures too can provoke dramatic retroperitoneal hematomas related to these veins injuries.
闭孔静脉通常汇入髂内静脉。其变异是盆腔手术中发生大出血的主要原因。我们观察到右侧闭孔静脉的一种罕见变异。右侧闭孔静脉有双重分支。两条闭孔静脉均通过闭孔管进入盆腔，与两条膀胱静脉汇合形成膀胱闭孔静脉丛。该静脉丛环绕髂内动脉，并汇入髂内静脉。了解这种罕见的变异对解剖学家、放射学家、妇科医生、泌尿科医生和骨科医生都很重要。该静脉丛可能导致在盆腔淋巴结清扫术、疝修补术、妇科和骨科手术中发生危险的出血。骨盆骨折也可能导致与这些静脉损伤相关的剧烈腹膜后血肿。
