If it be thrombosed it may be assumed that the lower part of the lateral sinus is also thrombosed.
The next step in the operation is to get well below the point at which the jugular is thrombosed.
There is no object in doing so, and if it is thrombosed a portion of the clot may be dislodged.
The collateral circulation is able to supply the thrombosed area.
The prevalent idea that a thrombosed jugular vein can be felt on palpation as a hard cord extending down the neck is erroneous.