Venogram reveals absence of opacification of the torcula, left transverse and sigmoid sinuses extending to the jugular bulb. The visualised upper left internal jugular vein contains contrast with central hypodensity consistent with thrombus.There is relative hypodensity of the entire left internal jugular vein when compared with the right side on the CTA study.
The remainder of the venous sinuses opacify normally.
Conclusion
Left transverse and sigmoid sinus thrombus extending into the left internal jugular vein. The straight sinus drains to the right TS, the deep veins are patent and normal, there is a narrow channel from the SSS connecting through the torcular to the right TS.
Whilst a dedicated venogram of the neck vessels has not been performed, the thrombus extends into the jugular bulb and IJV just below this is patent.
Stable appearance of the left temporal hemorrhage (likely hemorrhage into a venous infarct in this setting). Layering of subarachnoid blood vs thin tentorial subdural.