how can doctors be confident in saying "we got all of the cancer"?

When I watch TV I often hear the doctors (actors) assure patients and their family that they got “all of the cancer” during removal surgeries.

In my mind… I always thought that cancer was a lump of cells… multiplying uncontrolled… and at some point along its margins, it borders normal tissue.

How can you possibly cut perfectly between normal tissue and cancerous tissue?

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@hinterlufer
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1•1 year ago
Does anyone else feel like the first pane is upside down?

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