<% strPathPics = Session("strPathPicsL") imgBg = strPathPics + Session("strMedia") %> Sinus Thrombosis

Cerebral Venous Sinus Thrombosis - Transverse and Sigmoid Sinus

A 34 year-old woman presented with headaches and a mild receptive aphasia, two weeks following labor and delivery.

Show the Missing Transverse and Sigmoid Sinus   Show the Clot within the Transverse Sinus   Show the Venous Infarction

Magnetic Resonance Venogram (upper left); Coronal T1 MRI (upper right); Axial T1 MRI scans (lower left and lower right). In the MRV, note the absence of the left transverse and sigmoid sinus. In the coronal scan, a clot is seen within the left transverse sinus. In the lower images, a bright signal is seen in the posterior temporal lobe, indicated a subacute hemorrhage, explaining the patient's receptive aphasia. Venous infarcts are uncommon; they occur in patients who are hypercoagulable (post-partum, on hormone replacement, have an underlying malignancy, or are born with a genetic disorder). Venous infarctions are often hemorrhagic.

Last Update: 11/8/05
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