Human sacrifice became a common cultural trait during the advanced phases of
Mesoamerican civilizations. This phenomenon, influenced by complex religious beliefs,
included several practices such as decapitation, cranial deformation, and the use of human
cranial bones for skull mask manufacturing. Archaeological evidence suggests that all of
these practices required specialized knowledge of skull base and upper cervical anatomy.
The authors conducted a systematic search for information on skull base anatomical and …

Background: Glioblastomas multiforme (GBMs) are histologically heterogeneous tumors
derived from highly vascularized glia. This microvascular proliferation is a biological key to
diagnosis. Methods: The purpose of this study was to analyze the immunohistochemistry
features of these lesions, looking for commonly expressed antibodies such as vimentin,
nestin, glial fibrillary acidic protein (GFAP), GFAP delta (GFAP-δ), vascular endothelial
growth factor (VEGF), VEGF receptor 2 (VEGF-R2), VIII factor, CD31, CD34 and CD15 in 80 …