It allows a doctor to remove a tissue sample and test it in a lab. A biopsy is the only way to make a definitive melanoma diagnosis. A PET scan helps doctors determine if the cancer has spread to ...

Can a patient have a CT scan, diagnostic X-ray examination or MRI scan on the same day as the PET/CT scan? » After a PET scan, how long does a patient need to wait before using public transportation ...

The information from the PET scan and from the CT scan is different but complementary. The PET scan shows areas with increased metabolic activity, while the CT scan shows detailed anatomical locations ...