Pericardial Effusion

Increased amounts of fluid within the sac surrounding the heart, usually due to inflammation.

PET Scan

Positron Emission Tomography.



A sedating medication used to control seizures.

Pituitary Gland

A small oval endocrine gland attached to the brain.

Pituitary Stalk

A tiny structure which connects the hypothalamus to the pituitary gland.


A patch of bacteria or tissue cells.


Pertaining to being behind another structure - toward the back of the body.

Posteroanterior View

View in the direction from the back toward the front.


Peripheral quantitative computerized tomography.

Primary Amenorrhea

The inability to menstruate, caused by a failure of sexual maturation and function.

Primary Brain Tumor

Original source of tumor in the brain rather than other areas of the body.


Undeveloped or in early stages of development, undifferentiated.


A surgical instrument for penetrating and exploring bodily passages and cavities.


A sex hormone which is made in the ovaries and during pregnancy, by the placenta as well.


A forecast as to probable outcome.

Available Now!

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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.

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  • February


Continuing Education Program

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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.

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