Howard Stern's longtime co-host Robin Quivers announced on Monday that's she's been battling cancer for more than a year, Breaking Celebrity News has learned.

Quivers has co-hosted the show from her New York home for the past year.

In the dramatic segment Monday, Robin said a grapefruit-sized mass detected in her midsection turned out to be a tumor

"When it all was said and done they said it developed from endometrial tissue, which is uterine tissue," she said. "Th