What is the accuracy of PET scanning in detecting secondary lung tumors?

Updated: Feb 08, 2019
  • Author: Daniel S Schwartz, MD, MBA, FACS; Chief Editor: John Geibel, MD, DSc, MSc, AGAF  more...
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Answer

With any PET-CT modality, the clinical stage often differs from the pathologic stage, meaning that significant false positives and negatives remain. The value of PET-CT scans is that they help to direct the surgeon toward targets for biopsies to rule out nodal or systemic disease. All suspicious areas should be biopsied, but the practice of using a positive PET or PET-CT scan as definitive evidence of cancer is absolutely wrong.


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