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In the simplest of terms, an epidural corticosteroid (steroid) injection is a way to deliver pain medicine quickly into the body with a syringe.

CT enterography is an imaging test that uses CT imagery and a contrast material to view the small intestine. The procedure allows your healthcare provider to determine what is causing your condition. He or she can also tell how well you're responding to treatment for a health issue, such as Crohn's disease.

A breast scan is an imaging test to look at your breasts. It is used when a mammogram has not given your health care provider enough information.

Electronystagmography (ENG) is a test used to evaluate vertigo and certain other hearing and vision disorders. For this test, electrodes are placed above and below the eye. They record the electrical activity of the muscles that control eye movement.

A bone density test is used to measure the bone mineral content and density. It may be done using X-rays, dual-energy X-ray absorptiometry (DEXA or DXA), or a special CT scan that uses computer software to determine bone density of the hip or spine.

A bone scan is an imaging test used to look at the skeleton. It is done to find areas of physical and chemical changes in bone. A bone scan may also be used to see if treatment of certain conditions is working.

Magnetic resonance imaging creates detailed images of the body using large magnets and a computer. For breast MRI, a woman will lie face down with her breasts positioned through holes in a table.

Chest fluoroscopy is an imaging test that uses X-rays to look at how well your lungs are working. It can also look at other parts of your respiratory tract. Your respiratory tract includes your lungs, nose, throat, trachea, and bronchi.

Cystography is an imaging test that can help diagnose problems in your bladder. It uses X-rays. They may be X-ray pictures or fluoroscopy, a kind of X-ray "movie."