Ms. Redstone, who is trying to close the sale of her family’s Paramount media empire to Skydance, was diagnosed with thyroid cancer this spring.

Paramount chair Shari Redstone has disclosed that she underwent surgery for thyroid cancer in May after being diagnosed earlier this year.

Shari Redstone, who for months has been leading the charge to merge Paramount with Skydance has, at the same time, been fighting another battle with thyroid cancer.