I know there’s a reason, but I don’t know what it is.
In: Biology
Thing is, that many cancer types doesn’t have a sharp edge where there are no cancer cells after that. Testicular cancer is actually one of those where there is a sharp edge, which makes surgery very promising for this. However, given enough time, cells will travel, in turn creating metastases in other areas of your body. So when removing, or radiating, tumours, you often removeø/treat an extra region around the tumour itself, where people know from experience, that some extra tumour cells might exist.
And one of the first thing you learn when going into Oncology is, that cancer is easy to kill. However, the question is always if you kill the patient from excess treatment on areas that doesn’t need treatment, or just excess treatment in general. That is and will always be the sweet spot. Killing the cancer while killing as little as possible healthy tissue.
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