A 66-year-old female asked:
plz explain pet/ct scan xrays and images..how it shows the tumor and metastasis in body
1 doctor answer
Dr. Michael Gabor answered
33 years experience Diagnostic Radiology
The substances used: in PET are radioactive tracers that accumulate to varying degrees in sites of metabolic activity. Cancers typically have altered/increased metabolic activity relative to normal organs and tend to take up more of the tracer. The radioactivity is detected by the scanner and forms an image which lacks anatomic detail, so it is superimposed over a CT scan, which provides the necessary detail.
Answered on Jan 30, 2019
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A 17-year-old female asked:
Dr. Stephen Noga answered
34 years experience Medical Oncology
Yes: Below the level of detection and ct's are done in slices..Could be missed.
5
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A 17-year-old female asked:
Dr. Liawaty Ho answered
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No, Impossible: 6.6 cm is a large tumor- definitely, it should be shown up on cxr-and on ct scan.
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A 39-year-old female asked:
Dr. Allen Lu answered
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I am sorry... : To hear about your father. Melanoma is a horribly unpredictable cancer. It can show up six months or six years after the original treatment and can be ... Read More
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