Superior Semicircular Canal Dehiscence (SSCD) is a rare condition in which the bone overlying the superior semicircular canal of the inner ear is absent or thinned. This can lead to a variety of symptoms, including dizziness, vertigo, hearing loss, tinnitus, and a feeling of fullness in the ear. It is usually diagnosed with imaging tests such as CT or MRI scans. Treatment typically involves surgical repair of the dehiscence.

The most common symptoms of Superior Semicircular Canal Dehiscence (SSCD) include:
* Unilateral or bilateral hearing loss
* Autophony (hearing one's own voice louder than normal)
* Tinnitus (ringing in the ears)
* Vertigo (dizziness)
* Unsteadiness or imbalance
* Hyperacusis (increased sensitivity to sound)
* Pressure or fullness in the ear
* Aural fullness (feeling of fullness in the ear)
* Hyperventilation-induced vertigo
* Nystagmus (involuntary eye movements)
* Headaches
* Facial Numbness or tingling

The exact cause of Superior Semicircular Canal Dehiscence (SSCD) is unknown. However, it is believed to be caused by a combination of genetic and environmental factors. Possible causes include:

1. Congenital malformation: SSCD can be caused by a congenital malformation of the inner ear, which can be inherited or caused by environmental factors.

2. Trauma: Trauma to the head or ear can cause SSCD.

3. Infection: Infections such as meningitis or otitis media can cause SSCD.

4. Tumors: Tumors in the inner ear can cause SSCD.

5. Aging: As people age, the bones of the inner ear can become thinner and more fragile, which can lead to SSCD

1. Vestibular rehabilitation: This type of therapy helps to retrain the brain to compensate for the imbalance caused by the dehiscence. It can help to reduce symptoms such as dizziness, vertigo, and imbalance.

2. Medication: Medications such as anti-vertigo drugs, anti-anxiety drugs, and anti-seizure drugs can help to reduce symptoms.

3. Surgery: Surgery is the most effective treatment for superior semicircular canal dehiscence. The goal of surgery is to close the dehiscence and restore normal balance and hearing. Surgery may involve plugging the dehiscence with a bone graft, or reconstructing the canal with a tissue graft.

1. Congenital malformations of the temporal bone
2. Previous ear surgery
3. Trauma to the head or ear
4. Chronic ear infections
5. Autoimmune diseases
6. Genetic predisposition
7. Exposure to loud noises
8. Age-related changes in the temporal bone

There is no cure for Superior Semicircular Canal Dehiscence (SSCD). Treatment typically involves medications to reduce symptoms, such as anti-nausea medications, anti-vertigo medications, and medications to reduce inflammation. Surgery may be recommended in some cases to repair the dehiscence.