Bay Area sports radio icon Greg Papa returned to the airwaves on KNBR Tuesday morning for “Papa & Silver” with co-host Greg Silver. The occasion marked two months to the day since a cancer diagnosis that has kept him off the air.

“I’ll be here for a while right now. We’re between cycles. They started the hardcore chemo on the PICC line last week. I had a 10-day cycle on Sunday, which made watching football a blast,” Papa said, pointing out an IV in his arm. “… I got a little break between Cycle A and Cycle B. I will be with you as many days as I can.”

Papa shared that he was diagnosed with acute lymphoblastic leukemia b-cell, a blood cancer. He said he was feeling well Tuesday, but acknowledged that the treatment means his energy and mood wax and wane.

He said that he is in remission af

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