The parietal foramen anatomy: studies using dry skulls, cadaver and in vivo MRI

Are bone erosion and peripheral feeding vessels hallmarks of intracranial solitary fibrous tumor/hemangiopericytoma?

“…The tumor was exclusively fed by the transcranial blood supply from the contralateral occipital artery through the parietal foramina. The reason for contralateral supply might mainly be the dominance of bilateral occipital arteries, in addition to the location and distribution of the parietal foramina with variable anatomies [ 13 , 15 ]. In the present SFT/HPC, the accompanying bone erosion was located adjacent to the feeding vessel, while the tumor lacked hyperostosis and sunburst flow void as evident in the radiological findings.…”

“…After branching from the external carotid artery, the occipital artery initially courses deep sites from its origin to the arch formed by the trapezius and sternocleidomastoid muscles. The artery then becomes superficial while ascending to the vertex, where it occasionally penetrates the fine bony canal(s), parietal foramen, or foramina that are typically located in the parasagittal region, just anterior to the rhomboid suture, and anastomoses with the meningeal vessels [13] , [14] , [15] , [16] .…”

Anatomical features of the GV20 acupoint

“…Third, the presence or absence of a parietal foramen is highly variable among humans. 9 In the three cadavers, we observed parietal foramens on both sides ( Fig. 1 B), on one side ( Fig.…”

Anatomical observation and significance of the parietal foramen in Chinese adults

“…The edge of the PF is clear, with meningeal branches of the occipital artery, venules and nerves passing through [2]. PF has some important functions, such as communicating intracranial and extracranial transmitting blood vessels, nerves, and regulating intracranial pressure and body temperature, while it remains unclear whether the PF has other functions [6,7]. The anatomical knowledge of the PF is essential for neurosurgery because surgical manoeuvres may rupture the guiding vein and thus lead to bleeding.…”