How is superior semicircular canal dehiscence diagnosed?

Diagnosis and Tests These tests can include a CT scan of the temporal bone, which can show the opening in the bone covering the superior semicircular canal. Your physician may also order a test from an audiologist (a hearing test), more complete balance testing, and a vestibular evoked myogenic potential (VEMP) test.

Can MRI detect SSCD?

The sensitivity and specificity of MRI in the diagnosis of SSCD was 89.06% and 90%, respectively. The positive and negative predictive values were 93.44% and 83.72%, respectively.

What can mimic SSCD?

Related Disorders Posterior semicircular canal dehiscence is often due to a high riding jugular bulb but can also been seen with anomalies of the vestibular aqueduct, such as enlarged vestibular aqueduct syndrome (EVAS). EVAS, by itself can also produce symptoms similar to SSCD.

What are the symptoms of SCDS?

The problem can cause hearing loss, sound distortion and balance problems triggered by loud noises or intracranial pressure caused by sneezing or coughing. Patients often hear internal sounds — their voice, pulse, chewing, eyes moving — or their footsteps in the affected ear.

Why do I hear noises in my head when I move my eyes?

“The actual muscles that move the eyes are connected to the bones of the skull and there is an element of friction as these muscles move. Some patients, as their eyes move from side to side, hear that friction movement of the muscle as a noise in their ear.

How do you treat semicircular canal dehiscence?

The primary treatment for SCDS is surgery to close the hole in the superior canal in a way that prevents further pressure transmission between the inner ear and brain cavity. The team uses general anesthesia so you will be asleep during the procedure.

What does CT of temporal bone show?

Temporal bone CT is a limited kind of head CT that focuses on the lower part of the skull and the surrounding soft tissues, and is often used in patients with hearing loss, chronic ear infections, and middle and inner ear diseases.

What causes the temporal bone to hurt?

What are the causes & diagnosis of Temporalis Tendonitis? stress, tooth grinding, direct trauma to the Temporalis muscle, excessive gum chewing. In rare cases a condition called Coronoid Process Hyperplasia may be the cause of Temporal Tendinitis.

Can SSCD cause fatigue?

MS and SSCD share symptoms, such as fatigue, acquired nystagmus (uncontrollable rapid eye movements), migraines, vertigo, and balance loss—and I was experiencing all of these.

Who treats superior semicircular canal dehiscence?

Only recently identified by Lloyd Minor, MD, in 1998, this disorder also causes hypersensitivity to sound. Otolaryngologists at Brigham and Women’s Hospital (BWH) treat diseases, conditions and dysfunctions that affect hearing and balance including superior semicircular canal dehiscence.

Which of the following groups of symptoms would you expect from damage to the semicircular canals?

Damage or injury to the semicircular canals may be twofold. If any of the three separate pairs do not work, a person can lose their sense of balance. A loss of hearing may also result from any damage to these semicircular canals.

Why can I hear my heartbeat in my ear?

It is a type of rhythmic thumping, pulsing, throbbing, or whooshing only you can hear that is often in time with the heartbeat. Most people with pulsatile tinnitus hear the sound in one ear, though some hear it in both. The sound is the result of turbulent flow in blood vessels in the neck or head.