- May 24, 2011
Hi there, I have been having my inhibins drawn pretty regularly after my recent mastectomy ...

Positron emission tomography (PET) is an imaging test that uses a radioactive substance (called a tracer) to look for disease in the body. Unlike magnetic resonance imaging (MRI) and computed tomography (CT) scans, which reveal the structure of organs, a PET scan shows how the organs and tissues are functioning.
See also:
Nuclear medicine scan; Positron emission tomography