THROMBOSES of the dural sinuses give certain symptoms and signs dependent on the sinuses involved and the structures drained; these typical signs, however, may be modified by three separate conditions: first, the numerous collateral communications between sinuses and sinuses, and sinuses and veins; second, the anatomic variations in the position of the sinuses, and, third, the variations in size in the lateral sinuses; occasionally, one sinus may even be absent. On the presence of such anatomic variations, Woodhall1 based the reasons for false positive and negative phenomena.
Dural sinuses are sluggish venous channels first lying in the dural sheath and later becoming formed vessels. They collect blood from the brain and its coverings as they course centrad, finally to become the jugular vein; the sinuses connect one with the other and are given different names, dependent on their localization.
With any thrombosis, there may be increased intracranial tension with
TOOMEY JA, HUTT HB. THROMBOSIS OF THE DURAL SINUSES. Am J Dis Child. 1949;77(3):285–302. doi:10.1001/archpedi.1949.02030040295001
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