3) Normal flow void is seen in the major dural venous sinuses
1) It is formed by the union of the sigmoid and inferior petrosal dural venous sinuses
within the jugular foramen.
3) In NBD, the central nervous system might be involved in one or both of two ways: first, through the development of an immune mediated meningoencephalitis, and second, as a consequence of thrombosis within the dural venous sinuses
Traumatic thrombosis of dural venous sinuses
in closed head injuries.
Imaging studies are ordered to determine whether there are associated anomalies, and if the dural venous sinuses
course into the encephalocele sac (Figure 3) to avoid surgical resection.
The guidelines include an algorithm for diagnosing and managing cerebral venous thromboembolism (CVT), which is caused by a clot in the dural venous sinuses
, veins that drain blood from the brain toward the heart.
Pathologically, no tumor deposits were found within dural venous sinuses since they often are involved subsequent to bony metastases.
Hematogenous tumor spread to dura was also likely in the autopsy case of gallbladder carcinoma, since there was no associated bony metastatic disease and the dural venous sinuses overlying the dural metastasis were free of metastatic tumor cells.
NECT brain revealed hyperdense vasculature of the brain including large and small branches of Circle of Willis, dural venous sinuses
with HU values ranging from 50-55.
Brain abscesses, subdural empyema, spinal epidural abscesses, and septic thrombi of the cavernous and dural venous sinuses
should be surgically debrided if possible.
2-6) Kumar et al (2) postulated that these tumors arise from meningoepithelial cells, which are present throughout the arachnoid membrane with more concentration at the arachnoid villi within the dural venous sinuses