Sigmoid sinus diverticulum is a rare vascular finding due to an opening in the bone at the area of the sigmoid sinus creating a pouch, or diverticulum. Sometimes, there may be associated stenosis. The diverticulum may present as pulsatile tinnitus. Several case reports have demonstrated that treatment or endovascular coiling of this diverticulum can provide relief for a patients' symptoms. 

Diagnosis

Sigmoid sinus diverticulum can be diagnosed either by CT, CTA, MRI or MRV. Cerebral angiography provides definitive diagnosis

Sigmoid Sinus Diverticulum

Axial CT: Right sigmoid sinus diverticulum

Sigmoid Sinus Diverticulum

Venogram, showing right sigmoid sinus diverticulum

Sigmoid Sinus Diverticulum

Venogram, after coiling of the pouch, the diverticulum is closed

Departments and Programs Who Treat This Condition

department

Stroke and Cerebrovascular Center

BMC’s Stroke and Cerebrovascular Center is proud to be certified as a Comprehensive Stroke Center by the Joint Commission, which recognizes our ability to treat complex strokes. O…
department

Neurology

The Neurology Department offers a full spectrum of neurological care for all neurological disorders, from epilepsy to headaches to Alzheimer’s disease. Our robust research program…