When Francis S. Collins first discovered that his prostate-specific antigen ranges have been rising, he wasn’t notably nervous. A gradual rise in PSA ranges, which might point out the presence of prostate most cancers, is frequent in males older than 65, and most by no means develop extreme illness.
Nevertheless, when the previous director of the Nationwide Institutes of Well being underwent an MRI a couple of month in the past, the scan revealed an enlarged tumor. By then, his PSA ranges had additionally spiked, and he knew his prognosis had drastically modified.
