Paragangliomas of the Head and Neck
Paragangliomas of the head and neck are rare vascular skull-base tumors derived from the paraganglionic system with an estimated incidence of 1:30,000 accounting for 3% of all paragangliomas. The most…
Imaging Interpretation of Temporal Bone Studies in a Patient with Tinnitus
Key points • Tinnitus is a common symptom that is heterogeneous in presentation, pathophysiology, and imaging manifestations. • Causes are myriad and a multidisciplinary approach is often required. • Although…
Advanced Neuroimaging of Tinnitus
Key points • Tinnitus is associated with complex alterations to primary auditory, sensory, and limbic networks. • Functional MR imaging and diffusion tensor imaging are capable of revealing such changes….
Endovascular Interventions for Idiopathic Intracranial Hypertension and Venous Tinnitus
Pulsatile tinnitus from intracranial venous abnormalities is an uncommon cause of pulse synchronous tinnitus. Endovascular therapies may have applications in many of these disease conditions. They have the advantage of…
Dural Arteriovenous Fistulae
Key points • Intracranial dural arteriovenous fistulae (DAVF) are pathologic shunts between dural arteries to dural veins or a venous sinus and are an important cause of pulsatile tinnitus. •…
Surgical Treatment of Tinnitus
Key points • Most patients with objective tinnitus, whether pulse-synchronous or not, will have an identifiable and frequently treatable cause. • Venous etiologies of pulse-synchronous tinnitus are the most common….
Arterial Abnormalities Leading to Tinnitus
Key points • Tinnitus is the unwanted perception of sound in the absence of an external stimulus, and is classified by whether the sound is perceived by the patient alone,…
Venous Abnormalities Leading to Tinnitus
Venous anomalies are the most commonly identified abnormality by imaging in the work-up for pulse synchronous tinnitus. Potential diagnoses include idiopathic intracranial hypertension, sigmoid sinus wall anomalies, transverse and sigmoid…
Clinical Evaluation of Tinnitus
The clinical evaluation of patients with tinnitus differs based on whether the tinnitus is subjective or objective. Subjective tinnitus is usually associated with a hearing loss, and therefore, the clinical…
