Howard Sternis detailing his frightening health ordeal and biggest interview regret in a revealing new sitdown.

The radio host spoke withThe Hollywood Reporterand shared the story of his 2017 cancer scare.

And Im scared shless.

NEW YORK, NY - JANUARY 31: Howard Stern speaks onstage at “Howard Stern’s Birthday Bash” presented by SiriusXM, produced by Howard Stern Productions at Hammerstein Ballroom on January 31, 2014 in New York City. (Photo by Kevin Mazur/Getty Images for SiriusXM)

Credit: Kevin Mazur/Getty Images

Fortunately, the abnormality turned out to be nothing more than a cyst.

Stern tells the publication.

I could have had a great conversation, but Im playing to the audience.

How stupid am I?

Stern previously mentioned the same regret on his show back in August of 2014 the day afterWilliams diedby suicide.

I think my whole demeanor and attitude was just shy.

I wasnt trying to be mean to Robin Williams.

And I was an immature asshole.

And so that always haunted me … and then I kind of filed it away and forgot about it.

He concluded, This was a guy who should have been celebrated.

These days, Stern is focused on conducting more meaningful interviews.

you’ve got the option to only interview so many strippers, he shares.

But now I find it gross.

And Id feel really fing shy if I hadnt evolved.

Id be completely out of step with the times.

Read more ofSterns interview withTHRhere.