Dural sinus occlusive disease

Last revised by Ammar Haouimi on 28 Dec 2020

Dural sinus occlusive disease (DSOD) is an infective form of dural sinus thrombosis (thrombophlebitis) commonly seen in the setting of acute otomastoiditis. It typically presents with:

The diagnosis can be difficult to make, even with MRI, due to the frequent artifacts of flow, and the enhancement of the thickened dura mater and also potentially of the clot itself. However, the demonstration of normal flow in the dural venous sinus essentially excludes the diagnosis.

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