A diagnosis of idiopathic intracranial hypertension cannot be assumed without a clinical history of headaches or visual field disturbance. However, suggesting a correlation with clinical features of the disorder is worthwhile.

The sigmoid sinus diverticulum is likely secondary to the focal stenosis in the distal transverse sinus, resulting from a high-velocity jet. It is equivalent to arterial post-stenotic dilatation.

Unfortunately, we do not have access to the presenting complaint or whether the patient was complaining of tinnitus.