Development of posterior fossa dural sinuses
, emissary veins, and jugular bulb: morphological and radiologic study.
The difficulty of surgery depends on the involvement of vital structures such as the dural sinuses
Large arachnoid granulations are another potential pitfall, as they cause defects in the dural sinuses
on digital or MR venograms.
Transverse dural sinuses
: Incidence of anatomical variants and flow artefacts with 2D time-of-flight MR venography at 1 tesla.
This occurs when emissary veins between the scalp and dural sinuses
are sheared as a result of traction on the scalp most often associated with vacuum assisted delivery, prematurity, coagulopathies, or prolonged labor.
Cerebral venous thrombosis, thrombosis of cerebral veins and major dural sinuses
, is an uncommon disorder in the general population.