Terminology N

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NEGATIVE PREDICTIVE VALUE (NPV) - Proportion of true negative tests when a modality gives a negative test result.

NEOADJUVANT - Therapy given before and/or during primary therapy.

NEUROVASCULAR BUNDLES - Nerves and blood vessels running on either side of the prostate that allow the penis to become erect.

NEPHRECTOMY - Removal of the kidney.

NEPHROURETERECTOMY - Removal of the kidney and ureter.

NORTHERN BLOT - An experimental technique designed to identify and quantitate RNA.

NUCLEUS - A spherical body within a cell containing genetic material.