[jepper]

paradoxically there is also a risk involved with false positive diagnosis (be it unnecessary procedures, CT scans, surgeries, anxiety etc.) Also the detection window can be small from detectable to symptomatic for (especially) aggressive tumors. An example is the very difficult discussion on general population mamma carcinoma (breast cancer) or colon cancer screenings.

However being well informed and questioning everything is the very best way to be a patient.