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A member asked:
Can cancer hide in lymph nodes and not show on pet scahn?
6 doctors weighed in across 4 answers
Yes: Unfortunately yes. Pet scans do not detect all cancer in the lymph nodes.
Answered 2/2/2018
5.5k views
Yes : No test is perfect including pet scan. Some cancers do not show up well on pet scans and positive pet scans do not only mean cancer.
Answered 10/3/2016
5.5k views
Yes: With current pet systems, the limit of resolution for detecting typical cancers by 18f-fdg pet generally ranges between a 0.4- and 1.0-cm diameter, which translates into a tumor size roughly of 0.1–0.5 to 1.0 g or 10^8-10^9 cancerous cells.
Answered 12/9/2013
5.5k views
Yes: Pet scans detect some, but not all cancers. In addition, they don't work we'll for tumors less than 1cm. They are useful in the staging of some cancers, but we don't think they help screening general populations.
Answered 3/26/2013
5.5k views
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