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A member asked:
A study showed pet could pick up lung tumours as small as 3mm http://clincancerres.aacrjournals.org/content/11/17/6186 why are lesions 4-8mm missed?
A doctor has provided 1 answer
PET not alwa reliabl: PET scan is the best test for detecting Cancer in the body. Yet for small lung nodules, it can be falsely negative for lesions <5-8 mms. CT scan is actually a better test in picking of very small cancerous nodules in the lung. PET scan is a better test for the mediastinal lymph nodes. So no single test is 100 % reliable for lung cancer especially tiny ones.
Answered 2/25/2017
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