Türe U, Yaşargil M G, Krisht A F
Department of Neurosurgery, University of Arkansas for Medical Sciences, Little Rock, USA.
Neurosurgery. 1996 Dec;39(6):1075-84; discussion 1084-5. doi: 10.1097/00006123-199612000-00001.
The corpus callosum is the major commissural pathway connecting the hemispheres of the human brain. It is particularly important, because various tumors and vascular lesions can be located in and around the corpus callosum, and it is a route through which pass several surgical approaches. Performing accurate surgery in this region and avoiding damage to normal structures require that the neurosurgeon have adequate knowledge of the anatomy of the intricate blood supply to this area.
In 20 cadaver brains, the arteries of the corpus callosum were examined under the operating microscope, with particular attention to the origin, course, anastomoses, number, and caliber of the arteries.
In all specimens, the pericallosal and posterior pericallosal arteries were found to be the main sources of blood supply to the corpus callosum. In 80% of the specimens, the anterior communicating artery gave rise to either a subcallosal artery or a median callosal artery, each of which made a substantial contribution to the blood supply of the corpus callosum. A detailed examination of the anatomic features of all the main arteries of supply revealed anastomoses within the callosal sulcus that formed the pericallosal pial plexus. This network supplied the corpus callosum, the radiation of the corpus callosum, and the cingulate gyrus.
Familiarity with the details of the vascularity of the corpus callosum is crucial when performing surgery in this region. The additional, significant data described expands the knowledge of this anatomy, which can enhance the surgeon's ability to accomplish a more accurate and successful exploration.
胼胝体是连接人类大脑半球的主要连合通路。它尤为重要，因为各种肿瘤和血管病变可位于胼胝体及其周围，并且它是几种手术入路所经过的路径。在该区域进行精确手术并避免损伤正常结构要求神经外科医生充分了解该区域复杂血供的解剖结构。
在20个尸体大脑中，在手术显微镜下检查胼胝体的动脉，特别关注动脉的起源、走行、吻合情况、数量和管径。
在所有标本中，胼周动脉和胼周后动脉被发现是胼胝体的主要血供来源。在80%的标本中，前交通动脉发出胼下动脉或胼中动脉，每一支都对胼胝体的血供有重要贡献。对所有主要供血动脉的解剖特征进行详细检查发现，胼胝沟内存在吻合，形成胼周软膜丛。该网络为胼胝体、胼胝体辐射纤维和扣带回提供血液供应。
在该区域进行手术时，熟悉胼胝体血管分布的细节至关重要。所描述的这些额外的重要数据扩展了对该解剖结构的认识，这可以提高外科医生完成更精确和成功探查的能力。
