Just to point out, cancer isn't the only reason to get these. Aneurisms, hemachromatosis, etc can all be serious. I know someone who got scanned for $500 and they caught hemachromatosis via iron deposits in the liver. Much better than eventual chirrosis and liver failure.

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tptacek 2 hours ago | parent [-]

What's the base rate of hemachromatosis in the population and what's the false positive rate for MRI detection of the condition?

	▲	giantg2 2 hours ago \| parent [-]
		MRI does not diagnose hemachromatosis. It detects iron deposits (could be due to other harmful issues). To my knowledge it would not produce a false positive. Hemachromatosis is the most common genetic issue in white people, so pretty common (I'm too lazy to look up stats).