In a long-term study of the blood vessels of the brain,1-3 contrast media were used as injection masses to demonstrate on roentgen film the course and cerebral relationship of these vessels. One of these media was a water solution of lead (lead sulfamate*), which, when injected into either the internal cerebral veins or the arteries coursing over the cerebral cortex, filled a myriad of fine venous channels traversing the white matter of the cerebral hemisphere. Interconnections between the superficial and the deep venous system of the cerebral hemispheres, through blood vessels traversing the white matter, have been postulated by others. Ekker,4 in 1853, and Duret,5 in 1874, presumed the presence of venous channels connecting the superficial and deep veins of the brain. Pfeifer,6 in 1930, using microscopic methods, showed clearly anastomotic blood channels in the white matter of the brain. Schlesinger,7 in 1939, producing venous
KAPLAN HA. The Transcerebral Venous System: An Anatomical Study. AMA Arch Neurol. 1959;1(2):148–152. doi:10.1001/archneur.1959.03840020022004
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