The Prime Minister said he is thankful the King’s cancer has been “caught early” as he wished him a full recovery.Charles, 75, is facing regular treatment for cancer after his shock diagnosis was uncovered during his recent hospital stay for a procedure on an enlarged prostate.The King, who has postponed all his public duties, returned to London from Sandringham on Monday and has already begun his medical care as an outpatient under the supervision of his specialist team of doctors.Rishi Sunak said he was left “shocked and sad” when he was told about the King’s cancer diagnosis.He told BBC Radio 5 Live: “All our thoughts are with him and his family.“Thankfully, this has been caught early.”