[shazbotter]

MRIs produce shadows that are indistinguishable from cysts or tumors all the time. They are benign, but no amount of data will reduce them. And telling someone "you have a shadow here, it's probably benign" makes people anxious and they go, "maybe I should boost it?" Which is needlessly invasive.

[sixo]

huh, well, if it's true that "no amount of data will reduce them" then my point is wrong, but I highly doubt that's true.

[empyrrhicist]

The data is often a biopsy, which is invasive and potentially harmful.