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A PET scan can reveal the presence of a mass, but it is also good to have a sample of cells from the suspected area to look for changes in the nucleus to ascertain whether pre-cancerous changes are taking place. Hence, the biopsy under CT guidance.

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12y ago

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the pet scan can help locate the lesion to be biopsied.

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17y ago
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Q: Why is a biopsy given after a pet scan?
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