Grönvall herself wrote about the news on Instagram. She notes that she was first treated for breast cancer 20 years ago and was declared cured ten years ago.
"But a clean bill of health is no guarantee that it can't reappear and that's exactly what has happened," she writes.
She adds that the current conditions look good, but that she will have surgery and is therefore canceling all her jobs for a two-month period.
What do you think?