Glossary Index by Letter

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z #

Arthritis

Inflammation of a joint or a state characterized by inflammation of joints. Arthritis is caused by inflammation, of the tissue lining the joints. Some signs of inflammation include redness, heat, pain, and swelling. In some types of arthritis, the joints involved can...

Articulation

The adjustments and movements of speech organs involved in pronouncing a particular sound, taken as a whole. A neurological examination assesses motor and sensory skills, the functioning of one or more cranial nerves, articulation, hearing, vision, coordination and...

Artifact

Something artificial, a distortion that does not reflect normal anatomy or pathology, not usually found in the body. A structure or substance not normally present but produced by an external agent or action, such as a structure seen in a microscopic specimen after...

Aspiration

An accidental sucking in of food particles or fluids into the lungs. Can also mean removal of a sample of fluid and cells through a needle. Aspiration as a medical procedure is the removal of fluid or tissue through a needle, called a needle biopsy. Breathing in a...

Asymptomatic

To have a disease condition without showing obvious outward symptoms. Many pituitary patients however, do have mild symptoms that are simply not recognized by treating physicians.

Atherosclerosis

Atherosclerosis is the buildup of fat and other material inside the artery walls. Atherosclerosis is a disease in which plaque (plak) builds up on the insides of the arteries. Arteries are blood vessels that carry oxygen-rich blood to the heart and other parts of the...

Atrophic Vaginitis

Thinning of the lining of the vagina due to decreased production of estrogen. Atrophic vaginitis is an inflammation of the vagina due to thinning and shrinking tissues and a decrease in lubrication. Atrophic vaginitis is typically caused by a decrease in estrogen...

Atrophy

A wasting of tissues, organs, or the entire body. Muscle atrophy can be caused by lack of physical exercise (Disuse atrophy), and can be reversed by exercise. But the second and most severe type of muscle atrophy is neurogenic atrophy. It occurs when there is injury...

Attenuation

A decrease in vitality or pathogenicityof a microorganism or in the severity of a disease. In radiology; the loss of energy of a beam of radiant energy due to absorption, scattering, beam divergence, and other causes as the beam propagates through a medium.

Audiometry

A test to measure hearing. An audiology exam tests the ability to hear sounds by intensity (volume or loudness) and tone (the speed of sound wave vibrations). Sound waves move to the nerves of the inner ear and then the brain and can travel to the inner ear by air...

Autologous

Coming from the same individual, as opposed to being donated by another individual. Taken from an individual's own blood, tissues, cells, or DNA.

Autosomal Kallman’s Syndrome

A form of inherited Kallmann's syndrome which affects both men and women, because the sex chromosomes are unaffected. Kallmann syndrome is a condition characterized by delayed or absent puberty and an impaired sense of smell. This disorder is a form of...

Autosomes

Those chromosomes which are not the sex chromosomes. In humans, each cell normally contains 23 pairs of chromosomes, for a total of 46. Twenty-two of these pairs, called autosomes, look the same in both males and females. The 23rd pair, the sex chromosomes, differ...

Axillary Lymph Nodes

Lymph nodes in the armpit region that drains lymph channels from the breast. Numerous nodes around the axillary (below the shoulder joint) veins which receive the lymphatic drainage from the upper limb, scapular region and pectoral region (including mammary gland);...

Bacteria

Single-celled microorganisms. Bacteria are single-celled microorganisms which can exist either as independent organisms or as parasites (dependent upon another organism for existance). Examples of bacteria are Acidophilus, Chlamydia, Clostridium welchii or gangrene,...

Benign

Not malignant, not cancerous. In reference to a tumor; an abnormal mass of tissue that results when cells divide more than they should or do not die when they should. Tumors may be benign (not cancerous), or malignant (cancerous).

BIA

Bioelectric impedance. A non-invasive technique for measuring body composition. Bioelectric impedance analysis is a method for determining the lean body mass. One type of BIA involves standing on a special scale with footpads while a small amount of electrical current...

Biological Response Modifier

A substance used in adjuvant therapy that takes advantage of the body's own natural defense mechanisms to inhibit the growth of a tumor. An agent or approach intended to modify the relationship between tumor and host by modifying a host's biological response to tumor...

Biopsy

Examination of a small amount of tissue taken from the patient's body to make a diagnosis. The removal of cells or tissues for examination by a pathologist. The pathologist may study the tissue under a microscope or perform other tests on the cells or tissue. There...

Blood Count

The calculated number of white or red blood cells in a cubic millimeter of blood. A test to check the number of red blood cells, white blood cells, and platelets in a sample of blood. Also called complete blood count and CBC. White blood cell (WBC) refers to a blood...

Available Now!

The Pituitary Patient Resource Guide Sixth Edition is now available! Be one of the first to have the most up-to-date information. The Pituitary Patient Resource Guide a one of a kind publication intended as an invaluable source of information not only for patients but also their families, physicians, and all health care providers. It contains information on symptoms, proper testing, how to get a diagnosis, and the treatment options that are available. It also includes Pituitary Network Association’s patient resource listings for expert medical care.

Buy Now

PNA Gratefully Acknowledges our Supporters

Continuing Education Program

If you are a nurse or medical professional, register for PNA CEU Membership and  earn CEU credits to learn about the symptoms, diagnosis and treatment options for patients with pituitary disorders. Help PNA reduce the time it takes for patients to get an accurate diagnosis.

Register Now!

For more information click here!