Microsurgical Anatomy Of Jugular Foramen Region Via Far-lateral Suboccipital Approachal

Objective:Suboccipital distal approach microsurgical anatomy of the jugular foramen,to provide morphological basis for the approach by suboccipital distal lesion of the jugular foramen.Methods:Under the operating microscope in the distal approach to simulate the suboccipital microsurgical anatomy of the jugular foramen and observations on five cases of formalin-fixed adult head and neck specimens.Result:The right side of the jugular foramen is usually larger than left,in the study,we found that 68%of the specimens in the right side of the left 12%on both sides and other,20%less than the left side to the right.The glossopharyngeal channels and vagal channel is 0.5-4.9mm thick subdural split separated.Only with the vagus nerve completely separate from the location of the interval of the dura mater of the proximal glossopharyngeal nerve in subdural.About 30%of the nerve along the inner side of the internal jugular vein rather than the outer side of decline.Carotid artery in the rear of the external carotid artery and internal jugular vein in the anteromedial up almost straight to reach the carotid canal.The external carotid artery in the carotid artery in front of the uplink.And after the atlas transverse foramen,in the jugular foramen,below and behind the vertebral artery in the upstream reach.The sigmoid sinus is injected into the jugular foramen vein pipeline.Jugular foramen also accepted fromthe inferior petrosal sinus and jugular vein petrous part of the confluence of venous reflux.Conclusions:Master Microsurgical anatomy of the jugular foramen region favorable to this regional imaging diagnosis of lesions and lesion in the region,nerves,blood vessels of the protection.