“The duchess wants to express her immense gratitude to all the medical staff who have supported her in recent days.
“She is also hugely thankful to the staff involved in the mammogram which identified her illness, which was otherwise symptom-free, and believes her experience underlines the importance of regular screening.”
The operation was carried out at King Edward VII Hospital in Marylebone, Central London, according to friends.
Another said that the mother-of-two’s prognosis was good, thanks to the cancer being spotted early.
The duchess, according to the Daily Mail, will speak about her diagnosis and treatment in an upcoming episode of her podcast Tea Talks with the Duchess and Sarah - a weekly podcast she does with co-host Sarah Jane Thomson.