Letter A
ABDOMEN
The belly. The area of the body that is below the chest and above the pelvis.
ABSCESS
A pocket of pus associated with an infection.
ABSCESS (brain)
An abnormal collection of pus or infection. If this occurs in the brain it can be very serious and result in inflammation and swelling of the brain tissue.
ACCESSORY SALIVARY TISSUE
A normal variation of anatomy with “extra” salivary gland tissue. Is usually of no consequence unless they get infected or cancerous.
ACETABULUM
“Socket” of the hip joint.
ACOUSTIC NEUROMA
A tumor arising from the nerve tissue of the inner ear. They are usually benign but can often grow and cause symptoms such as hearing loss. They can be surgically removed if too big. It is also called a vestibular schwanomma.
ACOUSTIC SHADOWING
Dark shadow seen on ultrasound, often due to calcium deposits. This can help Radiologist characterize the makeup of a finding on ultrasound.
ACROMIOCLAVICULAR
Between acromion (part of shoulder blade bone) and clavicle (collar bone). You can feel this area on top of your shoulder near the end of the collar bone.
ACROMIOHUMERAL INTERVAL
Space between acromion (part of shoulder blade bone) and humerus in the shoulder. This space can be narrowed when there is injury to the rotator cuff. Widening of this space can be also seen with joint fluid.
ACROMION
Part of the scapula (large triangular bone in the upper back on each side) that meets the collar bone.
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