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U.S. Sen. Rick Scott says he's sympathizing with former President Joe Biden following Biden's cancer diagnosis, but Scott has questions about the release of information surrounding the condition.

"I mean, we all get these PSA tests, and so it's hard to believe ... but I hope it gets better. I mean, it doesn't seem to make much sense, that they wouldn't know it."

Prostate cancer can evolve in different ways.

For some men, it's a slow-developing phenomenon. For others, as appears to be the case with Biden, it's more aggressive.

The Gleason Score, as the Cleveland Clinic notes, essentially rates the abnormal cells. Biden's condition is as bad as it gets.

Scott isn't questioning whether Biden has prostate cancer. Rather, he wonders why the prostate-specific antigen test, which is part of routine blood work for men, didn't ascertain the problem sooner.

That test catches more than cancer. An enlarged or inflamed prostate can drive up PSA levels.

Digital rectal exams and biopsies are also fundamental to cancer diagnoses.