Pet Scan and Lung Cancer Size

Last Modified: January 6, 2008


Dear OncoLink "Ask The Experts,"

How large does a lung nodule have to be for a PET scan to be accurate or the test of choice?


Anil Vachani, MD, Attending Physician at the University of Pennsylvania Medical Center, responds:

Pet is generally not recommended for lesions under 8mm. See Pulmonary Nodule on CT for more information.


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