Image source, BBC StudiosThe Duchess of York has spoken of her admiration for the Princess of Wales in speaking out about her cancer diagnosis.
Sarah Ferguson was diagnosed with skin cancer this year after facing breast cancer last summer.
Her comment comes days after Catherine, 42, revealed in a video statement that she was receiving cancer treatment following abdominal surgery this year.
The duchess said raising awareness would do a "tremendous amount of good."
"I know she will be surrounded by the love of her family and everyone is praying for the best outcome," she said in an Instagram post.
"As someone who has faced their own battles with cancer in recent months, I am full of admiration for the way she has spoken publicly about her diagnosis and know it will do a tremendous amount of good to raise awareness."
The 64-year-old revealed in January that was diagnosed with malignant melanoma, a form of skin cancer, which was discovered following the removal of a cancerous mole during treatment for breast cancer.
She had several moles removed and analysed while having reconstructive surgery, and it was her second cancer diagnosis within six months.
Her comment comes days after King Charles III – who has been diagnosed with cancer himself – praised his daughter-in-law for speaking out about her cancer diagnosis, saying he was "so proud of Catherine for her courage."
The duchess said she hoped the princess would be given the "time, space and privacy to heal."
On Friday, Catherine revealed in a video statement that she undergoing preventative chemotherapy after cancer was found in tests.
Details of the cancer have not been disclosed, but Kensington Palace says it is confident the princess will make a full recovery.