Needle Biopsy

Removal of tissue or suspensions of cells from living patients through a small needle for diagnostic examination.

Neoplasm

An abnormal tissue that grows by cellular proliferation more rapidly than normal and continues to grow after the stimuli that initiated the new growth cease.

Nervous System

The entire integrated system of nerve tissue in the body

Neuron

Nerve cell; conducts electrical signals.

Neuroradiology

The clinical subspecialty concerned with the diagnostic radiology of diseases of the central nervous system, head, and neck.

Noninvasive

Denoting a procedure that does not require insertion of an instrument or device through the skin or a body orifice for diagnosis or treatment.

Nuclear Medicine

The clinical discipline concerned with the diagnostic and theraputic uses of radionuclides (an isotope of artificial or natural origin that exhibits radioactivity), excluding the therapeutic use of sealed radiation sources.

Nucleus

The center of the cell containing the genetic information (genes and chromosomes, DNA, etc.).

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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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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