A leading oncologist who once worked with former President Biden has joined others in expressing surprise that his prostate cancer wasn’t detected earlier. This suggests that the oldest-ever president might have been dealing with the disease for “a decade.”

Dr. Ezekiel Emanuel, a previous member of Biden’s transition team who contributed to the creation of the Obama-era Affordable Care Act, left MSNBC’s left-leaning “Morning Joe” hosts taken aback with his unexpected analysis.

“He’s had this for many years, maybe even a decade, growing there and spreading,” Emanuel told the Biden-supporting hosts

“It’s a bit surprising. I reviewed the records, and there’s no indication that when his health status and medical records were made public, he had a prostate-specific antigen,” Emanuel noted.

Emanue insisted the 82-year-old would have definitely had the disease even before he was elected to the White House — leading the MSNBC hosts visibly stunned.

“He did not develop it in the last 100 to 200 days,” Emanuel said.

“He had it while he was president. He probably had it at the start of his presidency in 2021. Yes, I don’t think there’s any disagreement about that.”