Lance Armstrong... greatest doper there was or ever will be

There's still a question to be asked if there's a direct link between his ingestion of testerone and steriods [and fuck knows what else] and the testicular cancer

That's probably unreasonable speculation, even from an oncologist.

What might be more reasonable speculation is that the masking agents masked the early detection of the cancer.

Again, speculating unreasonably, late detection may have contributed to its aggressive spread.