A positron emission tomography (PET) scan uses a tracer with low levels of radiation to find places in your body where cells are unusually active—which can mean they're cancerous. A PET scan can ...

A PET/CT test has two components: a PET scan and a CT, which are done together. The radiation exposure from CT has a very wide range depending on the type of the test, the area of the body scanned and ...

Still short of breath, she went to a pulmonologist and learned through a CT scan that the abnormality was a large mass. An immediate full-body PET Scan showed she had stage 4, inoperable lung ...