fluorine F 18 fluoro furanyl norprogesterone

Definition / meaning of fluorine F 18 fluoro furanyl norprogesterone

The progesterone derivative fluoro furanyl norprogesterone (FFNP), radiolabeled with fluorine F 18, with positron-emitting radioligand activity. Upon injection, fluorine F 18 fluoro furanyl norprogesterone (F18-FFNP) binds to progesterone receptors (PgR) in progesterone-responsive tissues. In PgR-positive breast cancer, positron emission tomography (PET) may then be used to quantitate hormone receptor status.

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Source(s):

The Web site of the National Cancer Institute (http://www.cancer.gov/)

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